add: ej1 whoosh

.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-    "python.REPL.enableREPLSmartSend": false
+    "python.REPL.enableREPLSmartSend": false,
+    "python-envs.defaultEnvManager": "ms-python.python:venv"
 }

ejercicios/beautifulsoup/ej1/src/__ssl.py

@@ -1,5 +0,0 @@
-def init_ssl():
-    import os, ssl
-    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
-    getattr(ssl, '_create_unverified_context', None)):
-        ssl._create_default_https_context = ssl._create_unverified_context

ejercicios/beautifulsoup/ej1/src/config.py

@@ -1,6 +0,0 @@
-from pathlib import Path
-
-URL = "https://www.vinissimus.com/es/vinos/tinto/?cursor="
-DATA_DIR = Path(__file__).parent.parent / "data"
-CSV_PATH =  DATA_DIR / "books.csv"
-DB_PATH = DATA_DIR / "books.bd"

ejercicios/beautifulsoup/ej1/src/db.py

@@ -1,141 +0,0 @@
-import sqlite3
-from pathlib import Path
-
-
-class DBAttr:
-    def __init__(self, name, type_, modifier=""):
-        self.name = name
-        self.type_ = type_
-        self.modifier = modifier
-
-    def sql(self):
-        parts = [self.name, self.type_]
-        if self.modifier:
-            parts.append(self.modifier)
-        return " ".join(parts)
-
-
-class DBManager:
-    _instance = None
-    
-    def __new__(cls, *args, **kwargs):
-        if cls._instance is None:
-            cls._instance = super().__new__(cls)
-        return cls._instance
-    
-    def __init__(self, path):
-        self.path = Path(path)
-        self.conn = sqlite3.connect(self.path)
-        self.conn.row_factory = sqlite3.Row
-
-    def create_table(self, table_name, attributes: list[DBAttr]):
-        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
-
-        query = f"""
-        CREATE TABLE IF NOT EXISTS {table_name} (
-            {columns_sql}
-        );
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error creating table:", e)
-
-    def get_all(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-        
-    def get_singleton(self, singleton_table):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
-            return [row[0] for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def get_by(self, table_name, column, value):
-        try:
-            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
-            cursor = self.conn.execute(query, (value,))
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def insert(self, table_name, data: dict):
-        keys = ", ".join(data.keys())
-        placeholders = ", ".join("?" for _ in data)
-        values = tuple(data.values())
-
-        query = f"""
-        INSERT INTO {table_name} ({keys})
-        VALUES ({placeholders});
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, values)
-        except Exception as e:
-            print("Error inserting:", e)
-
-    def update(self, table_name, data: dict, where_column, where_value):
-        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
-        values = list(data.values())
-        values.append(where_value)
-
-        query = f"""
-        UPDATE {table_name}
-        SET {set_clause}
-        WHERE {where_column} = ?;
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, tuple(values))
-        except Exception as e:
-            print("Error updating:", e)
-
-    def delete(self, table_name, where_column, where_value):
-        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
-
-        try:
-            with self.conn:
-                self.conn.execute(query, (where_value,))
-        except Exception as e:
-            print("Error deleting:", e)
-            
-    def clear(self, table_name):
-        query = f"DELETE FROM {table_name};"
-        
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error clearing table: ", e)
-
-    def exists(self, table_name, where_column, where_value):
-        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
-
-        try:
-            cursor = self.conn.execute(query, (where_value,))
-            return cursor.fetchone() is not None
-        except Exception as e:
-            print("Error checking existence:", e)
-            return False
-
-    def count(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
-            return cursor.fetchone()["total"]
-        except Exception as e:
-            print("Error counting:", e)
-            return 0
-
-    def close(self):
-        self.conn.close()

ejercicios/beautifulsoup/ej1/src/main.py

@@ -1,110 +0,0 @@
-from bs4 import BeautifulSoup
-import re
-from tkinter import Tk
-from tkinter import messagebox
-import urllib.request
-
-from db import DBManager, DBAttr
-from ui import WinesUI
-from __ssl import init_ssl
-from config import *
-
-init_ssl()
-
-dbm = DBManager(DB_PATH)
-
-def create_tables():
-    wines_attr = [
-        DBAttr("name", "TEXT", "NOT NULL"),
-        DBAttr("price", "INTEGER", "NOT NULL"),
-        DBAttr("origin", "TEXT", "NOT NULL"),
-        DBAttr("cellar", "TEXT", "NOT NULL"),
-        DBAttr("type", "TEXT", "NOT NULL")
-    ]
-    
-    types_attr = [
-        DBAttr("type", "TEXT")
-    ]
-    
-    dbm.create_table("wines", wines_attr)
-    dbm.create_table("types", types_attr)
-    
-def extract_wines():
-    l = []
-    
-    for i in range(0,3):
-        f = urllib.request.urlopen(URL+str(i*36))
-        doc = BeautifulSoup(f, "lxml")
-        page = doc.find_all("div", class_="product-list-item")
-        l.extend(page)
-   
-    return l
-
-def persist_wines(wines):
-    types = set()
-    
-    for wine in wines:
-        details = wine.find("div",class_=["details"])
-        name = details.a.h2.string.strip()
-        price = list(wine.find("p",class_=["price"]).stripped_strings)[0]
-        origin  = details.find("div",class_=["region"]).string.strip()
-        cellar = details.find("div", class_=["cellar-name"]).string.strip() 
-        grapes = "".join(details.find("div",class_=["tags"]).stripped_strings)
-        for g in grapes.split("/"):
-            types.add(g.strip())
-        disc = wine.find("p",class_=["price"]).find_next_sibling("p",class_="dto")
-        if disc:
-            price = list(disc.stripped_strings)[0]
-            
-        dbm.insert("wines", {"name": name, "price": float(price.replace(',', '.')), "origin": origin, "cellar": cellar, "type": grapes})
-    
-    for type in types:
-        dbm.insert("types", {"type": type})
-        
-    return dbm.count("wines"), dbm.count("types")
-
-def main():        
-    create_tables()
-    root = Tk()
-    ui = WinesUI(root)
-    
-    def handle_action(action):
-        match(action):
-            case "cargar":
-                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
-                if resp:
-                    dbm.clear("wines")
-                    dbm.clear("types")
-                    wines = extract_wines()
-                    wines_count, types_count = persist_wines(wines)
-                    ui.info(f"Hay {wines_count} vinos y {types_count} uvas.")
-            case "listar":
-                wines = dbm.get_all("wines")
-                ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
-            case "buscar_denominacion":
-                origins = list({wine["origin"] for wine in dbm.get_all("wines")})
-                origins.sort()
-                def search_origin(origin):
-                    wines = [wine for wine in dbm.get_all("wines") if wine["origin"] == origin]
-                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
-                ui.ask_spinbox("Buscar por denominación: ", origins, search_origin)
-            case "buscar_precio":
-                def search_price(price):
-                    wines = [wine for wine in dbm.get_all("wines") if float(wine["price"]) <= float(price)]
-                    wines.sort(key=lambda w: float(w["price"]))
-                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
-                ui.ask_text("Selecciona precio: ", search_price)
-            case "buscar_uva":
-                types = [t for t in dbm.get_singleton("types")]
-                types.sort()
-                def search_type(type):
-                    wines = [wine for wine in dbm.get_all("wines") if type in wine["type"]]
-                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
-                ui.ask_spinbox("Selecciona tip de uva: ", types, search_type)
-    
-    ui.callback = handle_action
-    root.mainloop()
-    dbm.close()
-        
-if __name__ == "__main__":
-    main()

ejercicios/beautifulsoup/ej1/src/ui.py

@@ -1,76 +0,0 @@
-import tkinter as tk
-from tkinter import ttk, messagebox
-from tkinter.scrolledtext import ScrolledText
-
-class WinesUI():
-    def __init__(self, root, title = "AII"):
-        self.root = root
-        self.root.title(title)
-        self.root.geometry("900x600")
-                
-        # Menu Principal
-        self.menu = tk.Menu(self.root)
-        self.root.config(menu=self.menu)
-
-        # Menu Datos
-        datos_menu = tk.Menu(self.menu, tearoff=0)
-        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
-        datos_menu.add_command(label="Listar", command=lambda: self.callback("listar"))
-        datos_menu.add_separator()
-        datos_menu.add_command(label="Salir", command=self.root.quit)
-        self.menu.add_cascade(label="Datos", menu=datos_menu)
-
-        # Menu Buscar
-        buscar_menu = tk.Menu(self.menu, tearoff=0)
-        buscar_menu.add_command(label="Denominación", command=lambda: self.callback("buscar_denominacion"))
-        buscar_menu.add_command(label="Precio", command=lambda: self.callback("buscar_precio"))
-        buscar_menu.add_command(label="Uva", command=lambda: self.callback("buscar_uva"))
-        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
-
-        # Callback externo desde el punto de entrada
-        self.callback = None
-        
-    def show_list(self, items, fields, title="Listado"):
-        mw = tk.Toplevel(self.root)
-        mw.title(title)
-        listbox = tk.Listbox(mw, width=80, height=20)
-        listbox.pack(side="left", fill="both", expand=True)
-        scrollbar = tk.Scrollbar(mw)
-        scrollbar.pack(side="right", fill="y")
-        listbox.config(yscrollcommand=scrollbar.set)
-        scrollbar.config(command=listbox.yview)
-        
-        for item in items:
-            row = " | ".join(str(item[field]) for field in fields)
-            listbox.insert("end", row)
-            
-    def ask_text(self, label, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        entry = ttk.Entry(mw)
-        entry.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
-    
-    def ask_spinbox(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
-        spinbox.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
-        
-    def ask_radiobutton(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        sv = tk.StringVar(value=options[0])
-        for option in options:
-            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
-        
-    def info(slef, message):
-        messagebox.showinfo("Información", message)   

ejercicios/beautifulsoup/ej2/src/__ssl.py

@@ -1,5 +0,0 @@
-def init_ssl():
-    import os, ssl
-    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
-    getattr(ssl, '_create_unverified_context', None)):
-        ssl._create_default_https_context = ssl._create_unverified_context

ejercicios/beautifulsoup/ej2/src/config.py

@@ -1,6 +0,0 @@
-from pathlib import Path
-
-BASE_URL = "https://www.elseptimoarte.net"
-ESTRENOS_URL = BASE_URL + "/estrenos/2025/"
-DATA_DIR = Path(__file__).parent.parent / "data"
-DB_PATH = DATA_DIR / "movies.bd"

ejercicios/beautifulsoup/ej2/src/db.py

@@ -1,141 +0,0 @@
-import sqlite3
-from pathlib import Path
-
-
-class DBAttr:
-    def __init__(self, name, type_, modifier=""):
-        self.name = name
-        self.type_ = type_
-        self.modifier = modifier
-
-    def sql(self):
-        parts = [self.name, self.type_]
-        if self.modifier:
-            parts.append(self.modifier)
-        return " ".join(parts)
-
-
-class DBManager:
-    _instance = None
-    
-    def __new__(cls, *args, **kwargs):
-        if cls._instance is None:
-            cls._instance = super().__new__(cls)
-        return cls._instance
-    
-    def __init__(self, path):
-        self.path = Path(path)
-        self.conn = sqlite3.connect(self.path)
-        self.conn.row_factory = sqlite3.Row
-
-    def create_table(self, table_name, attributes: list[DBAttr]):
-        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
-
-        query = f"""
-        CREATE TABLE IF NOT EXISTS {table_name} (
-            {columns_sql}
-        );
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error creating table:", e)
-
-    def get_all(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-        
-    def get_singleton(self, singleton_table):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
-            return [row[0] for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def get_by(self, table_name, column, value):
-        try:
-            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
-            cursor = self.conn.execute(query, (value,))
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def insert(self, table_name, data: dict):
-        keys = ", ".join(data.keys())
-        placeholders = ", ".join("?" for _ in data)
-        values = tuple(data.values())
-
-        query = f"""
-        INSERT INTO {table_name} ({keys})
-        VALUES ({placeholders});
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, values)
-        except Exception as e:
-            print("Error inserting:", e)
-
-    def update(self, table_name, data: dict, where_column, where_value):
-        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
-        values = list(data.values())
-        values.append(where_value)
-
-        query = f"""
-        UPDATE {table_name}
-        SET {set_clause}
-        WHERE {where_column} = ?;
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, tuple(values))
-        except Exception as e:
-            print("Error updating:", e)
-
-    def delete(self, table_name, where_column, where_value):
-        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
-
-        try:
-            with self.conn:
-                self.conn.execute(query, (where_value,))
-        except Exception as e:
-            print("Error deleting:", e)
-            
-    def clear(self, table_name):
-        query = f"DELETE FROM {table_name};"
-        
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error clearing table: ", e)
-
-    def exists(self, table_name, where_column, where_value):
-        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
-
-        try:
-            cursor = self.conn.execute(query, (where_value,))
-            return cursor.fetchone() is not None
-        except Exception as e:
-            print("Error checking existence:", e)
-            return False
-
-    def count(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
-            return cursor.fetchone()["total"]
-        except Exception as e:
-            print("Error counting:", e)
-            return 0
-
-    def close(self):
-        self.conn.close()

ejercicios/beautifulsoup/ej2/src/main.py

@@ -1,109 +0,0 @@
-from bs4 import BeautifulSoup
-import re
-from tkinter import Tk
-from tkinter import messagebox
-import urllib.request
-from datetime import datetime
-
-from db import DBManager, DBAttr
-from ui import WinesUI
-from __ssl import init_ssl
-from config import *
-
-init_ssl()
-
-dbm = DBManager(DB_PATH)
-
-def create_tables():
-    movies_attr = [
-        DBAttr("title", "TEXT", "NOT NULL"),
-        DBAttr("original_title", "TEXT", "NOT NULL"),
-        DBAttr("country", "TEXT", "NOT NULL"),
-        DBAttr("date", "DATE", "NOT NULL"),
-        DBAttr("director", "TEXT", "NOT NULL"),
-        DBAttr("genres", "TEXT", "NOT NULL")
-    ]
-    
-    genres_attr = [
-        DBAttr("genre", "TEXT")
-    ]
-
-    dbm.create_table("movies", movies_attr)
-    dbm.create_table("genres", genres_attr)
-    
-def persist_movies():
-    f = urllib.request.urlopen(ESTRENOS_URL)
-    bs = BeautifulSoup(f, "lxml")
-    list_items = bs.find("ul", class_="elements").find_all("li")
-    for li in list_items: 
-        f = urllib.request.urlopen(BASE_URL+li.a['href'])
-        bs = BeautifulSoup(f, "lxml")
-        data = bs.find("main", class_="informativo").find("section",class_="highlight").div.dl
-        original_title = data.find("dt", string=lambda s: s and "Título original" in s).find_next_sibling("dd").get_text(strip=True)
-        country = "".join(data.find("dt", string=lambda s: s and "País" in s).find_next_sibling("dd").stripped_strings)
-        title = data.find("dt", string=lambda s: s and "Título" in s).find_next_sibling("dd").get_text(strip=True)
-        date = datetime.strptime(data.find("dt",string="Estreno en España").find_next_sibling("dd").string.strip(), '%d/%m/%Y')
-        
-        genres_director = bs.find("div",id="datos_pelicula")
-        genres_str = genres_director.find("p", class_="categorias").get_text(strip=True)
-        genres_list = [g.strip() for g in genres_str.split(",") if g.strip()]
-        for g in genres_list:
-            existing = dbm.exists("genres", "genre", g)
-            if not existing:
-                dbm.insert("genres", {"genre": g})
-        director = "".join(genres_director.find("p",class_="director").stripped_strings)
-        
-        dbm.insert("movies", {
-            "title": title,
-            "original_title": original_title,
-            "country": country,
-            "date": date,
-            "director": director,
-            "genres": genres_str
-        })
-        
-    return dbm.count("movies"), dbm.count("genres")
-
-def main():        
-    create_tables()
-    root = Tk()
-    ui = WinesUI(root)
-    
-    def handle_action(action):
-        match(action):
-            case "cargar":
-                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
-                if resp:
-                    dbm.clear("movies")
-                    dbm.clear("genres")
-                    movies_count, genres_count = persist_movies()
-                    ui.info(f"Hay {movies_count} películas y {genres_count} géneros")
-            case "listar":
-                movies = dbm.get_all("movies")
-                ui.show_list(movies, ["title", "original_title", "country", "date", "director", "genres"])
-            case "buscar_titulo":
-                def search_title(title):
-                    movies = [movie for movie in dbm.get_all("movies") if title.lower() in movie["title"].lower()]
-                    ui.show_list(movies, ["title", "country", "director"])
-                ui.ask_text("Buscar por titulo: ", search_title)
-            case "buscar_fecha":
-                def search_date(date):
-                    d = datetime.strptime(date, "%d-%m-%Y")
-                    movies = [movie for movie in dbm.get_all("movies") 
-                            if d < datetime.strptime(movie["date"], "%Y-%m-%d %H:%M:%S")]
-                    ui.show_list(movies, ["title", "date"])
-                ui.ask_text("Buscar por fecha: ", search_date)
-            case "buscar_genero":
-                genres = [g for g in dbm.get_singleton("genres")]
-                genres.sort()
-                def search_genre(genre):
-                    movies = [movie for movie in dbm.get_all("movies") if genre in movie["genres"]]
-                    ui.show_list(movies, ["title", "date"])
-                ui.ask_spinbox("Selecciona género: ", genres, search_genre)
-    
-    ui.callback = handle_action
-    root.mainloop()
-    dbm.close()
-            
-if __name__ == "__main__":
-    main()

ejercicios/beautifulsoup/ej2/src/ui.py

@@ -1,76 +0,0 @@
-import tkinter as tk
-from tkinter import ttk, messagebox
-from tkinter.scrolledtext import ScrolledText
-
-class WinesUI():
-    def __init__(self, root, title = "AII"):
-        self.root = root
-        self.root.title(title)
-        self.root.geometry("900x600")
-                
-        # Menu Principal
-        self.menu = tk.Menu(self.root)
-        self.root.config(menu=self.menu)
-
-        # Menu Datos
-        datos_menu = tk.Menu(self.menu, tearoff=0)
-        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
-        datos_menu.add_command(label="Listar", command=lambda: self.callback("listar"))
-        datos_menu.add_separator()
-        datos_menu.add_command(label="Salir", command=self.root.quit)
-        self.menu.add_cascade(label="Datos", menu=datos_menu)
-
-        # Menu Buscar
-        buscar_menu = tk.Menu(self.menu, tearoff=0)
-        buscar_menu.add_command(label="Título", command=lambda: self.callback("buscar_titulo"))
-        buscar_menu.add_command(label="Fecha", command=lambda: self.callback("buscar_fecha"))
-        buscar_menu.add_command(label="Género", command=lambda: self.callback("buscar_genero"))
-        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
-
-        # Callback externo desde el punto de entrada
-        self.callback = None
-        
-    def show_list(self, items, fields, title="Listado"):
-        mw = tk.Toplevel(self.root)
-        mw.title(title)
-        listbox = tk.Listbox(mw, width=80, height=20)
-        listbox.pack(side="left", fill="both", expand=True)
-        scrollbar = tk.Scrollbar(mw)
-        scrollbar.pack(side="right", fill="y")
-        listbox.config(yscrollcommand=scrollbar.set)
-        scrollbar.config(command=listbox.yview)
-        
-        for item in items:
-            row = " | ".join(str(item[field]) for field in fields)
-            listbox.insert("end", row)
-            
-    def ask_text(self, label, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        entry = ttk.Entry(mw)
-        entry.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
-    
-    def ask_spinbox(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
-        spinbox.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
-        
-    def ask_radiobutton(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        sv = tk.StringVar(value=options[0])
-        for option in options:
-            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
-        
-    def info(slef, message):
-        messagebox.showinfo("Información", message)   

ejercicios/beautifulsoup/ej4/src/__ssl.py

@@ -1,5 +0,0 @@
-def init_ssl():
-    import os, ssl
-    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
-    getattr(ssl, '_create_unverified_context', None)):
-        ssl._create_default_https_context = ssl._create_unverified_context

ejercicios/beautifulsoup/ej4/src/config.py

@@ -1,6 +0,0 @@
-from pathlib import Path
-
-BASE_URL = "https://recetas.elperiodico.com"
-RECIPES_URL = BASE_URL + "/Recetas-de-Aperitivos-tapas-listado_receta-1_1.html"
-DATA_DIR = Path(__file__).parent.parent / "data"
-DB_PATH = DATA_DIR / "recipes.bd"

ejercicios/beautifulsoup/ej4/src/db.py

@@ -1,141 +0,0 @@
-import sqlite3
-from pathlib import Path
-
-
-class DBAttr:
-    def __init__(self, name, type_, modifier=""):
-        self.name = name
-        self.type_ = type_
-        self.modifier = modifier
-
-    def sql(self):
-        parts = [self.name, self.type_]
-        if self.modifier:
-            parts.append(self.modifier)
-        return " ".join(parts)
-
-
-class DBManager:
-    _instance = None
-    
-    def __new__(cls, *args, **kwargs):
-        if cls._instance is None:
-            cls._instance = super().__new__(cls)
-        return cls._instance
-    
-    def __init__(self, path):
-        self.path = Path(path)
-        self.conn = sqlite3.connect(self.path)
-        self.conn.row_factory = sqlite3.Row
-
-    def create_table(self, table_name, attributes: list[DBAttr]):
-        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
-
-        query = f"""
-        CREATE TABLE IF NOT EXISTS {table_name} (
-            {columns_sql}
-        );
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error creating table:", e)
-
-    def get_all(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-        
-    def get_singleton(self, singleton_table):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
-            return [row[0] for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def get_by(self, table_name, column, value):
-        try:
-            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
-            cursor = self.conn.execute(query, (value,))
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def insert(self, table_name, data: dict):
-        keys = ", ".join(data.keys())
-        placeholders = ", ".join("?" for _ in data)
-        values = tuple(data.values())
-
-        query = f"""
-        INSERT INTO {table_name} ({keys})
-        VALUES ({placeholders});
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, values)
-        except Exception as e:
-            print("Error inserting:", e)
-
-    def update(self, table_name, data: dict, where_column, where_value):
-        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
-        values = list(data.values())
-        values.append(where_value)
-
-        query = f"""
-        UPDATE {table_name}
-        SET {set_clause}
-        WHERE {where_column} = ?;
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, tuple(values))
-        except Exception as e:
-            print("Error updating:", e)
-
-    def delete(self, table_name, where_column, where_value):
-        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
-
-        try:
-            with self.conn:
-                self.conn.execute(query, (where_value,))
-        except Exception as e:
-            print("Error deleting:", e)
-            
-    def clear(self, table_name):
-        query = f"DELETE FROM {table_name};"
-        
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error clearing table: ", e)
-
-    def exists(self, table_name, where_column, where_value):
-        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
-
-        try:
-            cursor = self.conn.execute(query, (where_value,))
-            return cursor.fetchone() is not None
-        except Exception as e:
-            print("Error checking existence:", e)
-            return False
-
-    def count(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
-            return cursor.fetchone()["total"]
-        except Exception as e:
-            print("Error counting:", e)
-            return 0
-
-    def close(self):
-        self.conn.close()

ejercicios/beautifulsoup/ej4/src/main.py

@@ -1,80 +0,0 @@
-from bs4 import BeautifulSoup
-import re
-from tkinter import Tk
-from tkinter import messagebox
-import urllib.request
-from datetime import datetime
-import locale
-
-from db import DBManager, DBAttr
-#from ui import RecipesUI
-from __ssl import init_ssl
-from config import *
-
-init_ssl()
-locale.setlocale(locale.LC_TIME, "es_ES.UTF-8")
-
-dbm = DBManager(DB_PATH)
-
-def create_tables():
-    recipes_attr = [
-        DBAttr("title", "TEXT", "NOT NULL"),
-        DBAttr("difficulty", "TEXT", "DEFAULT NULL"),
-        DBAttr("units", "INTEGER", "DEFAULT NULL"),
-        DBAttr("duration", "INTEGER", "DEFAULT NULL"),
-        DBAttr("author", "TEXT", "NOT NULL"),
-        DBAttr("updated_at", "DATE", "NOT NULL")
-    ]
-
-    dbm.create_table("recipes", recipes_attr)
-    
-def persist_recipes():
-    f = urllib.request.urlopen(RECIPES_URL)
-    bs = BeautifulSoup(f, "lxml")
-    results = bs.find_all("div", attrs={"data-js-selector": "resultado"})
-    for div in results:
-        print(div)
-        title_a = div.a
-        title = title_a.string.strip()
-        info_div = div.find("div", class_="info_snippet")
-        difficulty = info_div.find("span").get_text(strip=True) if info_div and info_div.find("span") else None
-        properties = div.find("div", class_="properties")
-        duration = properties.find("span", class_=["property", "duracion"]).string.strip() if properties and properties.find("span", class_=["property", "duracion"]) else None
-        units = properties.find("span", class_=["property", "unidades"]).string.strip() if properties and properties.find("span", class_=["property", "unidades"]) else None
-        details_link = title_a["href"]
-        f2 = urllib.request.urlopen(details_link)
-        bs2 = BeautifulSoup(f2, "lxml")
-        details = bs2.find("div", class_="autor").find("div", class_="nombre_autor")
-        author = details.find("a").string
-        date_str = details.find("span").string
-        updated_at = datetime.strptime(date_str, "%d %B %Y")
-        
-        dbm.insert("recipes", {
-            "title": title,
-            "difficulty": difficulty,
-            "units": units,
-            "duration": duration,
-            "author": author,
-            "updated_at": updated_at
-        })
-        
-        return dbm.count("recipes")
-        
-
-def main():        
-    create_tables()
-    recipes_count = persist_recipes()
-    print(recipes_count)
-    #root = Tk()
-    #ui = RecipesUI(root)
-    
-    # def handle_action(action):
-    
-    #ui.callback = handle_action
-    #root.mainloop()
-    #dbm.close()
-    
-    print(dbm.get_all("recipes"))
-            
-if __name__ == "__main__":
-    main()

ejercicios/python/ej2/src/db.py

@@ -1,124 +0,0 @@
-import sqlite3
-from pathlib import Path
-
-
-class DBAttr:
-    def __init__(self, name, type_, modifier=""):
-        self.name = name
-        self.type_ = type_
-        self.modifier = modifier
-
-    def sql(self):
-        parts = [self.name, self.type_]
-        if self.modifier:
-            parts.append(self.modifier)
-        return " ".join(parts)
-
-
-class DBManager:
-    _instance = None
-    
-    def __new__(cls, *args, **kwargs):
-        if cls._instance is None:
-            cls._instance = super().__new__(cls)
-        return cls._instance
-    
-    def __init__(self, path):
-        self.path = Path(path)
-        self.conn = sqlite3.connect(self.path)
-        self.conn.row_factory = sqlite3.Row
-
-    def create_table(self, table_name, attributes: list[DBAttr]):
-        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
-
-        query = f"""
-        CREATE TABLE IF NOT EXISTS {table_name} (
-            {columns_sql}
-        );
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query)
-        except Exception as e:
-            print("Error creating table:", e)
-
-    def get_all(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def get_by(self, table_name, column, value):
-        try:
-            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
-            cursor = self.conn.execute(query, (value,))
-            return [dict(row) for row in cursor.fetchall()]
-        except Exception as e:
-            print("Error selecting:", e)
-            return []
-
-    def insert(self, table_name, data: dict):
-        keys = ", ".join(data.keys())
-        placeholders = ", ".join("?" for _ in data)
-        values = tuple(data.values())
-
-        query = f"""
-        INSERT INTO {table_name} ({keys})
-        VALUES ({placeholders});
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, values)
-        except Exception as e:
-            print("Error inserting:", e)
-
-    def update(self, table_name, data: dict, where_column, where_value):
-        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
-        values = list(data.values())
-        values.append(where_value)
-
-        query = f"""
-        UPDATE {table_name}
-        SET {set_clause}
-        WHERE {where_column} = ?;
-        """
-
-        try:
-            with self.conn:
-                self.conn.execute(query, tuple(values))
-        except Exception as e:
-            print("Error updating:", e)
-
-    def delete(self, table_name, where_column, where_value):
-        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
-
-        try:
-            with self.conn:
-                self.conn.execute(query, (where_value,))
-        except Exception as e:
-            print("Error deleting:", e)
-
-    def exists(self, table_name, where_column, where_value):
-        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
-
-        try:
-            cursor = self.conn.execute(query, (where_value,))
-            return cursor.fetchone() is not None
-        except Exception as e:
-            print("Error checking existence:", e)
-            return False
-
-    def count(self, table_name):
-        try:
-            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
-            return cursor.fetchone()["total"]
-        except Exception as e:
-            print("Error counting:", e)
-            return 0
-
-    def close(self):
-        self.conn.close()

ejercicios/python/ej2/src/files.py

@@ -1,23 +0,0 @@
-import csv
-
-class FileReader:
-    _instance = None
-
-    def __new__(cls, *args, **kwargs):
-        if cls._instance is None:
-            cls._instance = super().__new__(cls)
-        return cls._instance
-
-    def __init__(self, delimiter=";"):
-        self.delimiter = delimiter
-
-    def read(self, file):
-        results = []
-        try:
-            with open(file, encoding="utf-8-sig") as f:
-                reader = csv.DictReader(f, delimiter=self.delimiter)
-                for row in reader:
-                    results.append(dict(row))
-        except Exception as e:
-            print(f"Error leyendo archivo: {e}")
-        return results

ejercicios/python/ej2/src/main.py

@@ -1,77 +0,0 @@
-from pathlib import Path
-from tkinter import Tk
-
-from files import FileReader
-from db import DBManager, DBAttr
-from ui import BooksUI
-
-DATA_DIR = Path(__file__).parent.parent / "data"
-CSV_PATH =  DATA_DIR / "books.csv"
-DB_PATH = DATA_DIR / "books.bd"
-
-dbm = DBManager(DB_PATH)
-fr = FileReader()
-
-def create_tables():
-    book_attrs = [
-        DBAttr("isbn", "INTEGER", "PRIMARY KEY"),
-        DBAttr("title", "TEXT", "NOT NULL"),
-        DBAttr("author", "TEXT"),
-        DBAttr("year", "DATE"),
-        DBAttr("publisher", "TEXT")
-    ]
-    
-    dbm.create_table("books", book_attrs)
-
-def main():
-    create_tables()
-    root = Tk()
-    ui = BooksUI(root)
-    
-    def handle_action(action):
-        match(action):
-            case "cargar":
-                books = fr.read(CSV_PATH)
-                count = 0
-                for book in books:
-                    book["isbn"] = int(book["isbn"])
-                    if not dbm.exists("books", "isbn", book["isbn"]):
-                        dbm.insert("books", book)
-                        count += 1
-                ui.info(f"{count} libros almacenados.")  
-            case "listar_todo":
-                books = dbm.get_all("books")
-                ui.show_list(books, ["isbn", "title", "author", "year"])
-            case "listar_ordenado":
-                def sort(attr):
-                    books = dbm.get_all("books")
-                    def key_fn(x):
-                        v = x[attr]
-                        if isinstance(v, int):
-                            return v
-                        elif isinstance(v, str) and v.isdigit():
-                            return int(v)
-                        else:
-                            return float('inf')
-                    books.sort(key=key_fn)
-                    ui.show_list(books, ["isbn", "title", "author", "year"])
-                ui.ask_radiobutton("Ordenar por: ", ["isbn", "year"], sort)
-            case "buscar_titulo":
-                def search_title(title):
-                    books = [book for book in dbm.get_all("books") if title.lower() in book["title"].lower()]
-                    ui.show_list(books, ["isbn", "title", "author", "year"])
-                ui.ask_text("Buscar por título: ", search_title)
-            case "buscar_editorial":
-                publishers = list({book["publisher"] for book in dbm.get_all("books")})
-                publishers.sort()
-                def search_publisher(publisher):
-                    books = [book for book in dbm.get_all("books") if book["publisher"] == publisher]
-                    ui.show_list(books, ["title", "author", "publisher"])
-                ui.ask_spinbox("Selecciona editorial: ", publishers, search_publisher)
-    
-    ui.callback = handle_action
-    root.mainloop()
-    dbm.close()
-    
-if __name__ == "__main__":
-    main()

ejercicios/python/ej2/src/ui.py

@@ -1,80 +0,0 @@
-import tkinter as tk
-from tkinter import ttk, messagebox
-from tkinter.scrolledtext import ScrolledText
-
-class BooksUI():
-    def __init__(self, root, title = "AII"):
-        self.root = root
-        self.root.title(title)
-        self.root.geometry("900x600")
-                
-        # Menu Principal
-        self.menu = tk.Menu(self.root)
-        self.root.config(menu=self.menu)
-
-        # Menu Datos
-        datos_menu = tk.Menu(self.menu, tearoff=0)
-        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
-        datos_menu.add_separator()
-        datos_menu.add_command(label="Salir", command=self.root.quit)
-        self.menu.add_cascade(label="Datos", menu=datos_menu)
-
-        # Menu Listar
-        listar_menu = tk.Menu(self.menu, tearoff=0)
-        listar_menu.add_command(label="Completo", command=lambda: self.callback("listar_completo"))
-        listar_menu.add_command(label="Ordenado", command=lambda: self.callback("listar_ordenado"))
-        self.menu.add_cascade(label="Listar", menu=listar_menu)
-
-        # Menu Buscar
-        buscar_menu = tk.Menu(self.menu, tearoff=0)
-        buscar_menu.add_command(label="Título", command=lambda: self.callback("buscar_titulo"))
-        buscar_menu.add_command(label="Editorial", command=lambda: self.callback("buscar_editorial"))
-        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
-
-        # Callback externo desde el punto de entrada
-        self.callback = None
-        
-    def show_list(self, books, fields, title="Listado"):
-        mw = tk.Toplevel(self.root)
-        mw.title(title)
-        listbox = tk.Listbox(mw, width=80, height=20)
-        listbox.pack(side="left", fill="both", expand=True)
-        scrollbar = tk.Scrollbar(mw)
-        scrollbar.pack(side="right", fill="y")
-        listbox.config(yscrollcommand=scrollbar.set)
-        scrollbar.config(command=listbox.yview)
-        
-        for book in books:
-            row = " | ".join(str(book[field]) for field in fields)
-            listbox.insert("end", row)
-            
-    def ask_text(self, label, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        entry = ttk.Entry(mw)
-        entry.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
-    
-    def ask_spinbox(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
-        spinbox.pack(pady=5)
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
-        
-    def ask_radiobutton(self, label, options, callback):
-        mw = tk.Toplevel(self.root)
-        mw.title(label)
-        tk.Label(mw, text=label).pack(pady=5)
-        sv = tk.StringVar(value=options[0])
-        for option in options:
-            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
-        ttk.Button(mw, text="Aceptar", command=
-                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
-        
-    def info(slef, message):
-        messagebox.showinfo("Información", message)   

exercises/information_retrieval/ej1/data/contacts/agenda.txt

@@ -0,0 +1,8 @@
+unoarrobagmail.com
+Antonio Garcia
+dosarrobagmail.com
+Pedro Guerra
+tresarrobagmail.com
+Ana Montero
+cuatroarrobagmail.com
+Luis Pontes

exercises/information_retrieval/ej1/data/emails/1.txt

@@ -0,0 +1,10 @@
+unoarrobagmail.com
+dosarrobagmail.com tresarrobagmail.com
+20101015
+Contrato de compraventa con la constructora
+Estimados socios:
+
+ya hemos firmado el contrato de compraventa con el cliente preferencial.
+Espero noticias vuestras.
+
+Un saludo,

exercises/information_retrieval/ej1/data/emails/2.txt

@@ -0,0 +1,10 @@
+dosarrobagmail.com
+unoarrobagmail.com
+20100410 
+Retraso en la firma del Contrato
+Estimados Antonio:
+
+agradezco mucho tus buenas noticias, aunque me temo que el documento que debe adjuntarse al contrato se va a retrasar
+unos dias.
+
+Un saludo,

exercises/information_retrieval/ej1/data/emails/3.txt

@@ -0,0 +1,10 @@
+tresarrobagmail.com
+unoarrobagmail.com dosarrobagmail.com
+20140225 
+Transferencia realizada
+Estimados socios:
+
+aunque el contrato no este legalizado aun, me he permitido hacer una transferencia por 
+la mitad del importe al contratista.
+
+Un saludo,

exercises/information_retrieval/ej1/data/emails/4.txt

@@ -0,0 +1,8 @@
+unoarrobagmail.com
+tresarrobagmail.com dosarrobagmail.com
+20110114 
+Lo comunicare al cliente
+Estimados socios:
+
+muchas gracias por las gestiones. se lo comunicare al cliente hoy mismo.
+Un saludo,

exercises/information_retrieval/ej1/data/emails/5.txt

@@ -0,0 +1,9 @@
+unoarrobagmail.com
+cuatroarrobagmail.com
+20130912
+Contrato y Transferencia
+Estimado Luis:
+
+ya hemos realizado una transferencia a su cuenta por el importe establecido inicialmente.
+
+Un saludo,

exercises/information_retrieval/ej1/data/emails/6.txt

@@ -0,0 +1,6 @@
+cuatroarrobagmail.com
+unoarrobagmail.com
+20131105
+Gracias
+
+Un saludo,

exercises/information_retrieval/ej1/main.py

@@ -0,0 +1,193 @@
+import locale
+import re
+import urllib.request
+from datetime import datetime
+from pathlib import Path
+import tkinter as tk
+from tkinter import messagebox, ttk
+from tkinter import Tk
+from tkinter.scrolledtext import ScrolledText
+import shutil, re, os
+
+from whoosh.index import create_in,open_dir
+from whoosh.fields import Schema, TEXT, DATETIME, KEYWORD, ID, NUMERIC
+from whoosh.qparser import QueryParser
+from whoosh import index, qparser, query
+
+DATA_DIR = Path(__file__).parent / "data"
+CONTACTS_DIR = DATA_DIR / "contacts"
+EMAILS_DIR = DATA_DIR / "emails"
+INDEX_DIR = Path(__file__).parent / "index"
+CONTACTS = {}
+
+def create_index():
+    if not os.path.exists(INDEX_DIR):
+        os.mkdir(INDEX_DIR)
+    
+    if not index.exists_in(INDEX_DIR, indexname="EmailIndex"):
+        schema = Schema(sender=TEXT(stored=True),
+                        receiver=KEYWORD(stored=True),
+                        date=DATETIME(stored=True),
+                        subject=TEXT(stored=True),
+                        body=TEXT(stored=True,phrase=False), 
+                        file_name=ID(stored=True))
+        idx = create_in(INDEX_DIR, schema=schema, indexname="EmailIndex")
+        print(f"Created index: {idx.indexname}")
+    else:
+        print(f"An index already exists")
+
+def add_to_index(writer, path, file_name):
+    try:
+        f = open(path, "r")
+        sender = f.readline().strip()
+        receiver = f.readline().strip()
+        date_raw = f.readline().strip()
+        date = datetime.strptime(date_raw, '%Y%m%d')
+        subject = f.readline().strip()
+        body = f.read()
+        f.close()           
+                
+        writer.add_document(
+            sender=sender,
+            receiver=receiver,
+            date=date,
+            subject=subject,
+            body=body,
+            file_name=file_name
+        )
+    except:
+        messagebox.showerror(f"[ERR] adding {path}/{file_name}")
+
+def index_emails(delete = False):
+    if delete:
+        shutil.rmtree(INDEX_DIR)
+        os.mkdir(INDEX_DIR)
+        create_index()
+        
+    idx = index.open_dir(INDEX_DIR, "EmailIndex")
+    writer = idx.writer()
+    count = 0
+    for f in os.listdir(EMAILS_DIR):
+        if not os.path.isdir(EMAILS_DIR / f):
+            add_to_index(writer, EMAILS_DIR / f, f)
+            count += 1
+        
+    writer.commit()
+    return count
+
+def create_contacts():
+    try:
+        f = open(CONTACTS_DIR / "agenda.txt", "r")
+        email = f.readline()
+        while email:
+            name = f.readline()
+            CONTACTS[email.strip()] = name.strip()
+            email = f.readline()
+    except:
+        messagebox.showerror(f"[ERR] creating contacts list")
+
+def load(delete = False):
+    create_contacts()
+    return index_emails(delete)
+
+class EmailsUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("load"))
+        datos_menu.add_command(label="Listar", command=lambda: self.callback("list"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Cuerpo o Asunto", command=lambda: self.callback("search_body_or_subject"))
+        buscar_menu.add_command(label="Fecha", command=lambda: self.callback("search_date"))
+        buscar_menu.add_command(label="Spam", command=lambda: self.callback("search_spam"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item.get(field, "Unknown")) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+def main():
+    locale.setlocale(locale.LC_TIME, "es_ES.UTF-8")
+    
+    create_index()
+    root = Tk()
+    ui = EmailsUI(root)
+
+    def handle_action(action):
+        match(action):
+            case "load":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    recipes_count = load(True)
+                    ui.info(f"Se han indexado {recipes_count} emails")
+            case "list":
+                ix = open_dir(INDEX_DIR, "EmailIndex")
+                with ix.searcher() as searcher:
+                    emails = searcher.search(query.Every(), limit=None)
+                    print(emails)
+                    ui.show_list(emails, ["sender", "receiver", "name", "subject", "body"])
+            # buscar con queries y tal...
+           
+    ui.callback = handle_action
+    root.mainloop()
+    
+if __name__ == "__main__":
+    main()
+    

exercises/information_retrieval/ej4/main.py

@@ -0,0 +1,247 @@
+import locale
+import re
+import urllib.request
+from datetime import datetime
+from pathlib import Path
+import tkinter as tk
+from tkinter import messagebox, ttk
+from tkinter import Tk
+from tkinter.scrolledtext import ScrolledText
+import shutil, re, os
+
+from bs4 import BeautifulSoup
+from whoosh.index import create_in,open_dir
+from whoosh.fields import Schema, TEXT, DATETIME, KEYWORD, ID, NUMERIC
+from whoosh.qparser import QueryParser
+from whoosh import index, qparser, query
+
+BASE_URL = "https://recetas.elperiodico.com"
+RECIPES_URL = BASE_URL + "/Recetas-de-Aperitivos-tapas-listado_receta-1_1.html"
+DATA_DIR = Path(__file__).parent / "index"
+
+def init_ssl():
+    import os, ssl
+    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
+    getattr(ssl, '_create_unverified_context', None)):
+        ssl._create_default_https_context = ssl._create_unverified_context
+
+def create_index():
+    if not os.path.exists(DATA_DIR):
+        os.mkdir(DATA_DIR)
+    
+    if not index.exists_in(DATA_DIR, indexname="RecipesIndex"):
+        schema = Schema(
+            title=TEXT(stored=True),
+            difficulty=TEXT(stored=True),
+            duration=TEXT(stored=True),
+            units=NUMERIC(stored=True, numtype=int),
+            author=ID(stored=True),
+            updated_at=DATETIME(stored=True),
+            features=KEYWORD(stored=True, commas=True), 
+            intro=TEXT(stored=True) 
+        )
+        idx = create_in(DATA_DIR, schema=schema, indexname="RecipesIndex")
+        print(f"Created index: {idx.indexname}")
+    else:
+        print(f"An index already exists")
+    
+def parse_duration(duration):
+    if not duration:
+        return None
+
+    duration = duration.strip().lower()
+
+    hours = 0
+    minutes = 0
+
+    h_match = re.search(r"(\d+)h", duration)
+    m_match = re.search(r"(\d+)m", duration)
+
+    if h_match:
+        hours = int(h_match.group(1))
+
+    if m_match:
+        minutes = int(m_match.group(1))
+
+    return hours * 60 + minutes
+
+def parse_duration_inverse(minutes):
+    if minutes is None:
+        return None
+    m = minutes % 60
+    h = (minutes - m) // 60
+    return f"{h}h {m}m" if h != 0 else f"{m}m"
+
+def persist_recipes():
+    idx = index.open_dir(DATA_DIR, "RecipesIndex")
+    writer = idx.writer()
+    count = 0
+    f = urllib.request.urlopen(RECIPES_URL)
+    bs = BeautifulSoup(f, "lxml")
+    results = bs.find_all("div", attrs={"data-js-selector": "resultado"})
+    for div in results:
+        title_a = div.a
+        title = div.a.string.strip()
+        info_div = div.find("div", class_="info_snippet")
+        difficulty = info_div.find("span").get_text(strip=True) if info_div and info_div.find("span") else "Unknown"
+        intro = div.find("div", class_="intro").get_text()
+        properties = div.find("div", class_="properties")
+        duration = properties.find("span", class_="duracion").string.strip() if properties and properties.find("span", class_="duracion") else "Unknown"
+        units = int(properties.find("span", class_="unidades").string.strip()) if properties and properties.find("span", class_="unidades") else -1
+        details_link = title_a["href"]
+        f2 = urllib.request.urlopen(details_link)
+        bs2 = BeautifulSoup(f2, "lxml")
+        details = bs2.find("div", class_="autor").find("div", class_="nombre_autor")
+        author = details.find("a").string
+        date_str = details.find("span").string.replace("Actualizado: ", "")
+        updated_at = datetime.strptime(date_str, "%d %B %Y")  
+        features = bs2.find("div", class_=["properties", "inline"]).get_text(strip=True).replace("Características adicionales:", "") if bs2.find("div", class_=["properties", "inline"]) else "Unknown"   
+       
+        writer.add_document(
+            title=title,
+            difficulty=difficulty,
+            duration=duration,
+            units=units,
+            author=author,
+            updated_at=updated_at,
+            features=features,
+            intro=intro
+        )
+        
+        count += 1
+        
+    writer.commit()
+        
+    return count
+
+class RecipesUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("load"))
+        datos_menu.add_command(label="Listar", command=lambda: self.callback("list_recipes"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Título o Introducción", command=lambda: self.callback("search_title_or_intro"))
+        buscar_menu.add_command(label="Fecha", command=lambda: self.callback("search_updated_at"))
+        buscar_menu.add_command(label="Características y Título", command=lambda: self.callback("search_features_and_title"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item.get(field, "Unknown")) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+def main():
+    init_ssl()
+    locale.setlocale(locale.LC_TIME, "es_ES.UTF-8")
+    
+    create_index()
+    root = Tk()
+    ui = RecipesUI(root)
+
+    def handle_action(action):
+        match(action):
+            case "load":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    recipes_count = persist_recipes()
+                    ui.info(f"Se han indexado {recipes_count} recetas")
+            case "list_recipes":
+                ix = open_dir(DATA_DIR, "RecipesIndex")
+                with ix.searcher() as searcher:
+                    recipes = searcher.search(query.Every(), limit=None)
+                    clear = []
+                    for r in recipes:
+                        d = dict(r)
+                        clear.append(d)
+                    print(clear)
+                    ui.show_list(clear, ["title", "difficulty", "units", "duration"])
+            # case "search_title_or_intro":
+            #     def search_author(author):
+            #         recipes = [recipe for recipe in dbm.get_all("recipes") if author.lower() in recipe["author"].lower()]
+            #         for r in recipes:
+            #             r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+            #             r["duration"] = parse_duration_inverse(r["duration"])
+            #         ui.show_list(recipes, ["title", "difficulty", "units", "duration", "author"])
+            #     ui.ask_text("Buscar por autor: ", search_author)
+            # case "search_updated_at":
+            #     def search_date(date):
+            #         d = datetime.strptime(date, "%d/%m/%Y")
+            #         recipes = [recipe for recipe in dbm.get_all("recipes") 
+            #                 if d > datetime.strptime(recipe["updated_at"], "%Y-%m-%d %H:%M:%S")]
+            #         for r in recipes:
+            #             r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+            #             r["duration"] = parse_duration_inverse(r["duration"])
+            #         ui.show_list(recipes, ["title", "difficulty", "units", "duration", "updated_at"])
+            #     ui.ask_text("Buscar por fecha: ", search_date)
+            # case "search_features_and_title":
+            #     def search_author(author):
+            #         recipes = [recipe for recipe in dbm.get_all("recipes") if author.lower() in recipe["author"].lower()]
+            #         for r in recipes:
+            #             r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+            #             r["duration"] = parse_duration_inverse(r["duration"])
+            #         ui.show_list(recipes, ["title", "difficulty", "units", "duration", "author"])
+            #     ui.ask_text("Buscar por autor: ", search_author)
+           
+    ui.callback = handle_action
+    root.mainloop()
+    
+if __name__ == "__main__":
+    main()
+    

exercises/python_basics/ej1/src/main.py

@@ -1,6 +1,7 @@
 import requests
 import re
 
+# --- CONSTANTS ------------------------------------------
 RSS_URL = "https://www.abc.es/rss/2.0/espana/andalucia/"
 ITEM_PATTERN = r"<item>(.*?)</item>"
 MONTHS = {
@@ -9,6 +10,7 @@ MONTHS = {
     "Sep": "09", "Oct": "10", "Nov": "11", "Dec": "12",
 }
 
+# --- MAIN PROGRAM FUNCTIONS -----------------------------
 def get_tag(text, tag):
     m = re.search(rf"<{tag}>(.*?)</{tag}>", text, re.DOTALL)
     return m.group(1).strip() if m else None

exercises/python_basics/ej2/main.py

@@ -0,0 +1,300 @@
+from pathlib import Path
+from tkinter import Tk
+import sqlite3
+import csv
+import tkinter as tk
+from tkinter import ttk, messagebox
+from tkinter.scrolledtext import ScrolledText
+
+# --- CONSTANTS ------------------------------------------
+DATA_DIR = Path(__file__).parent / "data"
+CSV_PATH =  DATA_DIR / "books.csv"
+DB_PATH = DATA_DIR / "books.bd"
+
+# --- HELPER CLASSES -------------------------------------
+class FileReader:
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+
+    def __init__(self, delimiter=";"):
+        self.delimiter = delimiter
+
+    def read(self, file):
+        results = []
+        try:
+            with open(file, encoding="utf-8-sig") as f:
+                reader = csv.DictReader(f, delimiter=self.delimiter)
+                for row in reader:
+                    results.append(dict(row))
+        except Exception as e:
+            print(f"Error leyendo archivo: {e}")
+        return results
+
+class DBAttr:
+    def __init__(self, name, type_, modifier=""):
+        self.name = name
+        self.type_ = type_
+        self.modifier = modifier
+
+    def sql(self):
+        parts = [self.name, self.type_]
+        if self.modifier:
+            parts.append(self.modifier)
+        return " ".join(parts)
+
+class DBManager:
+    _instance = None
+    
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+    
+    def __init__(self, path):
+        self.path = Path(path)
+        self.conn = sqlite3.connect(self.path)
+        self.conn.row_factory = sqlite3.Row
+
+    def create_table(self, table_name, attributes: list[DBAttr]):
+        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
+
+        query = f"""
+        CREATE TABLE IF NOT EXISTS {table_name} (
+            {columns_sql}
+        );
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error creating table:", e)
+
+    def get_all(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def get_by(self, table_name, column, value):
+        try:
+            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
+            cursor = self.conn.execute(query, (value,))
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def insert(self, table_name, data: dict):
+        keys = ", ".join(data.keys())
+        placeholders = ", ".join("?" for _ in data)
+        values = tuple(data.values())
+
+        query = f"""
+        INSERT INTO {table_name} ({keys})
+        VALUES ({placeholders});
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, values)
+        except Exception as e:
+            print("Error inserting:", e)
+
+    def update(self, table_name, data: dict, where_column, where_value):
+        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
+        values = list(data.values())
+        values.append(where_value)
+
+        query = f"""
+        UPDATE {table_name}
+        SET {set_clause}
+        WHERE {where_column} = ?;
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, tuple(values))
+        except Exception as e:
+            print("Error updating:", e)
+
+    def delete(self, table_name, where_column, where_value):
+        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
+
+        try:
+            with self.conn:
+                self.conn.execute(query, (where_value,))
+        except Exception as e:
+            print("Error deleting:", e)
+
+    def exists(self, table_name, where_column, where_value):
+        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
+
+        try:
+            cursor = self.conn.execute(query, (where_value,))
+            return cursor.fetchone() is not None
+        except Exception as e:
+            print("Error checking existence:", e)
+            return False
+
+    def count(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
+            return cursor.fetchone()["total"]
+        except Exception as e:
+            print("Error counting:", e)
+            return 0
+
+    def close(self):
+        self.conn.close()
+
+class BooksUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Listar
+        listar_menu = tk.Menu(self.menu, tearoff=0)
+        listar_menu.add_command(label="Completo", command=lambda: self.callback("listar_completo"))
+        listar_menu.add_command(label="Ordenado", command=lambda: self.callback("listar_ordenado"))
+        self.menu.add_cascade(label="Listar", menu=listar_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Título", command=lambda: self.callback("buscar_titulo"))
+        buscar_menu.add_command(label="Editorial", command=lambda: self.callback("buscar_editorial"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, books, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for book in books:
+            row = " | ".join(str(book[field]) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message) 
+
+# --- MAIN PROGRAM FUNCTIONS -----------------------------
+dbm = DBManager(DB_PATH)
+fr = FileReader()
+
+def create_tables():
+    book_attrs = [
+        DBAttr("isbn", "INTEGER", "PRIMARY KEY"),
+        DBAttr("title", "TEXT", "NOT NULL"),
+        DBAttr("author", "TEXT"),
+        DBAttr("year", "DATE"),
+        DBAttr("publisher", "TEXT")
+    ]
+    
+    dbm.create_table("books", book_attrs)
+
+def main():
+    create_tables()
+    root = Tk()
+    ui = BooksUI(root)
+    
+    def handle_action(action):
+        match(action):
+            case "cargar":
+                books = fr.read(CSV_PATH)
+                count = 0
+                for book in books:
+                    book["isbn"] = int(book["isbn"])
+                    if not dbm.exists("books", "isbn", book["isbn"]):
+                        dbm.insert("books", book)
+                        count += 1
+                ui.info(f"{count} libros almacenados.")  
+            case "listar_todo":
+                books = dbm.get_all("books")
+                ui.show_list(books, ["isbn", "title", "author", "year"])
+            case "listar_ordenado":
+                def sort(attr):
+                    books = dbm.get_all("books")
+                    def key_fn(x):
+                        v = x[attr]
+                        if isinstance(v, int):
+                            return v
+                        elif isinstance(v, str) and v.isdigit():
+                            return int(v)
+                        else:
+                            return float('inf')
+                    books.sort(key=key_fn)
+                    ui.show_list(books, ["isbn", "title", "author", "year"])
+                ui.ask_radiobutton("Ordenar por: ", ["isbn", "year"], sort)
+            case "buscar_titulo":
+                def search_title(title):
+                    books = [book for book in dbm.get_all("books") if title.lower() in book["title"].lower()]
+                    ui.show_list(books, ["isbn", "title", "author", "year"])
+                ui.ask_text("Buscar por título: ", search_title)
+            case "buscar_editorial":
+                publishers = list({book["publisher"] for book in dbm.get_all("books")})
+                publishers.sort()
+                def search_publisher(publisher):
+                    books = [book for book in dbm.get_all("books") if book["publisher"] == publisher]
+                    ui.show_list(books, ["title", "author", "publisher"])
+                ui.ask_spinbox("Selecciona editorial: ", publishers, search_publisher)
+    
+    ui.callback = handle_action
+    root.mainloop()
+    dbm.close()
+    
+if __name__ == "__main__":
+    main()

exercises/web_scrapping/ej1/main.py

@@ -0,0 +1,332 @@
+from bs4 import BeautifulSoup
+import re
+from tkinter import Tk
+from tkinter import messagebox
+import urllib.request
+from pathlib import Path
+import tkinter as tk
+from tkinter import ttk, messagebox
+from tkinter.scrolledtext import ScrolledText
+import sqlite3
+
+# --- CONSTANTS ------------------------------------------
+URL = "https://www.vinissimus.com/es/vinos/tinto/?cursor="
+DATA_DIR = Path(__file__).parent / "data"
+CSV_PATH =  DATA_DIR / "books.csv"
+DB_PATH = DATA_DIR / "books.bd"
+
+# --- HELPER CLASSES -------------------------------------
+class DBAttr:
+    def __init__(self, name, type_, modifier=""):
+        self.name = name
+        self.type_ = type_
+        self.modifier = modifier
+
+    def sql(self):
+        parts = [self.name, self.type_]
+        if self.modifier:
+            parts.append(self.modifier)
+        return " ".join(parts)
+
+class DBManager:
+    _instance = None
+    
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+    
+    def __init__(self, path):
+        self.path = Path(path)
+        self.conn = sqlite3.connect(self.path)
+        self.conn.row_factory = sqlite3.Row
+
+    def create_table(self, table_name, attributes: list[DBAttr]):
+        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
+
+        query = f"""
+        CREATE TABLE IF NOT EXISTS {table_name} (
+            {columns_sql}
+        );
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error creating table:", e)
+
+    def get_all(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+        
+    def get_singleton(self, singleton_table):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
+            return [row[0] for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def get_by(self, table_name, column, value):
+        try:
+            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
+            cursor = self.conn.execute(query, (value,))
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def insert(self, table_name, data: dict):
+        keys = ", ".join(data.keys())
+        placeholders = ", ".join("?" for _ in data)
+        values = tuple(data.values())
+
+        query = f"""
+        INSERT INTO {table_name} ({keys})
+        VALUES ({placeholders});
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, values)
+        except Exception as e:
+            print("Error inserting:", e)
+
+    def update(self, table_name, data: dict, where_column, where_value):
+        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
+        values = list(data.values())
+        values.append(where_value)
+
+        query = f"""
+        UPDATE {table_name}
+        SET {set_clause}
+        WHERE {where_column} = ?;
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, tuple(values))
+        except Exception as e:
+            print("Error updating:", e)
+
+    def delete(self, table_name, where_column, where_value):
+        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
+
+        try:
+            with self.conn:
+                self.conn.execute(query, (where_value,))
+        except Exception as e:
+            print("Error deleting:", e)
+            
+    def clear(self, table_name):
+        query = f"DELETE FROM {table_name};"
+        
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error clearing table: ", e)
+
+    def exists(self, table_name, where_column, where_value):
+        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
+
+        try:
+            cursor = self.conn.execute(query, (where_value,))
+            return cursor.fetchone() is not None
+        except Exception as e:
+            print("Error checking existence:", e)
+            return False
+
+    def count(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
+            return cursor.fetchone()["total"]
+        except Exception as e:
+            print("Error counting:", e)
+            return 0
+
+    def close(self):
+        self.conn.close()
+
+class WinesUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
+        datos_menu.add_command(label="Listar", command=lambda: self.callback("listar"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Denominación", command=lambda: self.callback("buscar_denominacion"))
+        buscar_menu.add_command(label="Precio", command=lambda: self.callback("buscar_precio"))
+        buscar_menu.add_command(label="Uva", command=lambda: self.callback("buscar_uva"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item[field]) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+# --- MAIN PROGRAM FUNCTIONS -----------------------------
+dbm = DBManager(DB_PATH)
+
+def init_ssl():
+    import os, ssl
+    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
+    getattr(ssl, '_create_unverified_context', None)):
+        ssl._create_default_https_context = ssl._create_unverified_context
+
+def create_tables():
+    wines_attr = [
+        DBAttr("name", "TEXT", "NOT NULL"),
+        DBAttr("price", "INTEGER", "NOT NULL"),
+        DBAttr("origin", "TEXT", "NOT NULL"),
+        DBAttr("cellar", "TEXT", "NOT NULL"),
+        DBAttr("type", "TEXT", "NOT NULL")
+    ]
+    
+    types_attr = [
+        DBAttr("type", "TEXT")
+    ]
+    
+    dbm.create_table("wines", wines_attr)
+    dbm.create_table("types", types_attr)
+    
+def extract_wines():
+    l = []
+    
+    for i in range(0,3):
+        f = urllib.request.urlopen(URL+str(i*36))
+        doc = BeautifulSoup(f, "lxml")
+        page = doc.find_all("div", class_="product-list-item")
+        l.extend(page)
+   
+    return l
+
+def persist_wines(wines):
+    types = set()
+    
+    for wine in wines:
+        details = wine.find("div",class_=["details"])
+        name = details.a.h2.string.strip()
+        price = list(wine.find("p",class_=["price"]).stripped_strings)[0]
+        origin  = details.find("div",class_=["region"]).string.strip()
+        cellar = details.find("div", class_=["cellar-name"]).string.strip() 
+        grapes = "".join(details.find("div",class_=["tags"]).stripped_strings)
+        for g in grapes.split("/"):
+            types.add(g.strip())
+        disc = wine.find("p",class_=["price"]).find_next_sibling("p",class_="dto")
+        if disc:
+            price = list(disc.stripped_strings)[0]
+            
+        dbm.insert("wines", {"name": name, "price": float(price.replace(',', '.')), "origin": origin, "cellar": cellar, "type": grapes})
+    
+    for type in types:
+        dbm.insert("types", {"type": type})
+        
+    return dbm.count("wines"), dbm.count("types")
+
+def main():        
+    create_tables()
+    root = Tk()
+    ui = WinesUI(root)
+    
+    def handle_action(action):
+        match(action):
+            case "cargar":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    dbm.clear("wines")
+                    dbm.clear("types")
+                    wines = extract_wines()
+                    wines_count, types_count = persist_wines(wines)
+                    ui.info(f"Hay {wines_count} vinos y {types_count} uvas.")
+            case "listar":
+                wines = dbm.get_all("wines")
+                ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
+            case "buscar_denominacion":
+                origins = list({wine["origin"] for wine in dbm.get_all("wines")})
+                origins.sort()
+                def search_origin(origin):
+                    wines = [wine for wine in dbm.get_all("wines") if wine["origin"] == origin]
+                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
+                ui.ask_spinbox("Buscar por denominación: ", origins, search_origin)
+            case "buscar_precio":
+                def search_price(price):
+                    wines = [wine for wine in dbm.get_all("wines") if float(wine["price"]) <= float(price)]
+                    wines.sort(key=lambda w: float(w["price"]))
+                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
+                ui.ask_text("Selecciona precio: ", search_price)
+            case "buscar_uva":
+                types = [t for t in dbm.get_singleton("types")]
+                types.sort()
+                def search_type(type):
+                    wines = [wine for wine in dbm.get_all("wines") if type in wine["type"]]
+                    ui.show_list(wines, ["name", "price", "origin", "cellar", "type"])
+                ui.ask_spinbox("Selecciona tip de uva: ", types, search_type)
+    
+    ui.callback = handle_action
+    root.mainloop()
+    dbm.close()
+        
+if __name__ == "__main__":
+    main()

exercises/web_scrapping/ej2/main.py

@@ -0,0 +1,330 @@
+from bs4 import BeautifulSoup
+import re
+import urllib.request
+from datetime import datetime
+from pathlib import Path
+import sqlite3
+import tkinter as tk
+from tkinter import ttk, messagebox
+from tkinter.scrolledtext import ScrolledText
+from tkinter import Tk
+
+# --- CONSTANTS ------------------------------------------
+BASE_URL = "https://www.elseptimoarte.net"
+ESTRENOS_URL = BASE_URL + "/estrenos/2025/"
+DATA_DIR = Path(__file__).parent / "data"
+DB_PATH = DATA_DIR / "movies.bd"
+
+# --- HELPER CLASSES -------------------------------------
+class DBAttr:
+    def __init__(self, name, type_, modifier=""):
+        self.name = name
+        self.type_ = type_
+        self.modifier = modifier
+
+    def sql(self):
+        parts = [self.name, self.type_]
+        if self.modifier:
+            parts.append(self.modifier)
+        return " ".join(parts)
+
+class DBManager:
+    _instance = None
+    
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+    
+    def __init__(self, path):
+        self.path = Path(path)
+        self.conn = sqlite3.connect(self.path)
+        self.conn.row_factory = sqlite3.Row
+
+    def create_table(self, table_name, attributes: list[DBAttr]):
+        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
+
+        query = f"""
+        CREATE TABLE IF NOT EXISTS {table_name} (
+            {columns_sql}
+        );
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error creating table:", e)
+
+    def get_all(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+        
+    def get_singleton(self, singleton_table):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
+            return [row[0] for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def get_by(self, table_name, column, value):
+        try:
+            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
+            cursor = self.conn.execute(query, (value,))
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def insert(self, table_name, data: dict):
+        keys = ", ".join(data.keys())
+        placeholders = ", ".join("?" for _ in data)
+        values = tuple(data.values())
+
+        query = f"""
+        INSERT INTO {table_name} ({keys})
+        VALUES ({placeholders});
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, values)
+        except Exception as e:
+            print("Error inserting:", e)
+
+    def update(self, table_name, data: dict, where_column, where_value):
+        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
+        values = list(data.values())
+        values.append(where_value)
+
+        query = f"""
+        UPDATE {table_name}
+        SET {set_clause}
+        WHERE {where_column} = ?;
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, tuple(values))
+        except Exception as e:
+            print("Error updating:", e)
+
+    def delete(self, table_name, where_column, where_value):
+        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
+
+        try:
+            with self.conn:
+                self.conn.execute(query, (where_value,))
+        except Exception as e:
+            print("Error deleting:", e)
+            
+    def clear(self, table_name):
+        query = f"DELETE FROM {table_name};"
+        
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error clearing table: ", e)
+
+    def exists(self, table_name, where_column, where_value):
+        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
+
+        try:
+            cursor = self.conn.execute(query, (where_value,))
+            return cursor.fetchone() is not None
+        except Exception as e:
+            print("Error checking existence:", e)
+            return False
+
+    def count(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
+            return cursor.fetchone()["total"]
+        except Exception as e:
+            print("Error counting:", e)
+            return 0
+
+    def close(self):
+        self.conn.close()
+        
+class WinesUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
+        datos_menu.add_command(label="Listar", command=lambda: self.callback("listar"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Título", command=lambda: self.callback("buscar_titulo"))
+        buscar_menu.add_command(label="Fecha", command=lambda: self.callback("buscar_fecha"))
+        buscar_menu.add_command(label="Género", command=lambda: self.callback("buscar_genero"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item[field]) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+# --- MAIN PROGRAM FUNCTIONS ----------------------------- 
+dbm = DBManager(DB_PATH)
+
+def init_ssl():
+    import os, ssl
+    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
+    getattr(ssl, '_create_unverified_context', None)):
+        ssl._create_default_https_context = ssl._create_unverified_context
+
+def create_tables():
+    movies_attr = [
+        DBAttr("title", "TEXT", "NOT NULL"),
+        DBAttr("original_title", "TEXT", "NOT NULL"),
+        DBAttr("country", "TEXT", "NOT NULL"),
+        DBAttr("date", "DATE", "NOT NULL"),
+        DBAttr("director", "TEXT", "NOT NULL"),
+        DBAttr("genres", "TEXT", "NOT NULL")
+    ]
+    
+    genres_attr = [
+        DBAttr("genre", "TEXT")
+    ]
+
+    dbm.create_table("movies", movies_attr)
+    dbm.create_table("genres", genres_attr)
+    
+def persist_movies():
+    f = urllib.request.urlopen(ESTRENOS_URL)
+    bs = BeautifulSoup(f, "lxml")
+    list_items = bs.find("ul", class_="elements").find_all("li")
+    for li in list_items: 
+        f = urllib.request.urlopen(BASE_URL+li.a['href'])
+        bs = BeautifulSoup(f, "lxml")
+        data = bs.find("main", class_="informativo").find("section",class_="highlight").div.dl
+        original_title = data.find("dt", string=lambda s: s and "Título original" in s).find_next_sibling("dd").get_text(strip=True)
+        country = "".join(data.find("dt", string=lambda s: s and "País" in s).find_next_sibling("dd").stripped_strings)
+        title = data.find("dt", string=lambda s: s and "Título" in s).find_next_sibling("dd").get_text(strip=True)
+        date = datetime.strptime(data.find("dt",string="Estreno en España").find_next_sibling("dd").string.strip(), '%d/%m/%Y')
+        
+        genres_director = bs.find("div",id="datos_pelicula")
+        genres_str = genres_director.find("p", class_="categorias").get_text(strip=True)
+        genres_list = [g.strip() for g in genres_str.split(",") if g.strip()]
+        for g in genres_list:
+            existing = dbm.exists("genres", "genre", g)
+            if not existing:
+                dbm.insert("genres", {"genre": g})
+        director = "".join(genres_director.find("p",class_="director").stripped_strings)
+        
+        dbm.insert("movies", {
+            "title": title,
+            "original_title": original_title,
+            "country": country,
+            "date": date,
+            "director": director,
+            "genres": genres_str
+        })
+        
+    return dbm.count("movies"), dbm.count("genres")
+
+def main():        
+    create_tables()
+    root = Tk()
+    ui = WinesUI(root)
+    
+    def handle_action(action):
+        match(action):
+            case "cargar":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    dbm.clear("movies")
+                    dbm.clear("genres")
+                    movies_count, genres_count = persist_movies()
+                    ui.info(f"Hay {movies_count} películas y {genres_count} géneros")
+            case "listar":
+                movies = dbm.get_all("movies")
+                ui.show_list(movies, ["title", "original_title", "country", "date", "director", "genres"])
+            case "buscar_titulo":
+                def search_title(title):
+                    movies = [movie for movie in dbm.get_all("movies") if title.lower() in movie["title"].lower()]
+                    ui.show_list(movies, ["title", "country", "director"])
+                ui.ask_text("Buscar por titulo: ", search_title)
+            case "buscar_fecha":
+                def search_date(date):
+                    d = datetime.strptime(date, "%d-%m-%Y")
+                    movies = [movie for movie in dbm.get_all("movies") 
+                            if d < datetime.strptime(movie["date"], "%Y-%m-%d %H:%M:%S")]
+                    ui.show_list(movies, ["title", "date"])
+                ui.ask_text("Buscar por fecha: ", search_date)
+            case "buscar_genero":
+                genres = [g for g in dbm.get_singleton("genres")]
+                genres.sort()
+                def search_genre(genre):
+                    movies = [movie for movie in dbm.get_all("movies") if genre in movie["genres"]]
+                    ui.show_list(movies, ["title", "date"])
+                ui.ask_spinbox("Selecciona género: ", genres, search_genre)
+    
+    ui.callback = handle_action
+    root.mainloop()
+    dbm.close()
+            
+if __name__ == "__main__":
+    main()

exercises/web_scrapping/ej4/main.py

@@ -0,0 +1,356 @@
+from bs4 import BeautifulSoup
+import re
+import urllib.request
+from datetime import datetime
+import locale
+from pathlib import Path
+from tkinter import Tk
+import tkinter as tk
+from tkinter import ttk, messagebox
+from tkinter.scrolledtext import ScrolledText
+import sqlite3
+
+# --- CONSTANTS ------------------------------------------
+BASE_URL = "https://recetas.elperiodico.com"
+RECIPES_URL = BASE_URL + "/Recetas-de-Aperitivos-tapas-listado_receta-1_1.html"
+DATA_DIR = Path(__file__).parent / "data"
+DB_PATH = DATA_DIR / "recipes.bd"
+
+# --- HELPER CLASSES -------------------------------------
+class DBAttr:
+    def __init__(self, name, type_, modifier=""):
+        self.name = name
+        self.type_ = type_
+        self.modifier = modifier
+
+    def sql(self):
+        parts = [self.name, self.type_]
+        if self.modifier:
+            parts.append(self.modifier)
+        return " ".join(parts)
+
+class DBManager:
+    _instance = None
+    
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = super().__new__(cls)
+        return cls._instance
+    
+    def __init__(self, path):
+        self.path = Path(path)
+        self.conn = sqlite3.connect(self.path)
+        self.conn.row_factory = sqlite3.Row
+
+    def create_table(self, table_name, attributes: list[DBAttr]):
+        columns_sql = ",\n    ".join(attr.sql() for attr in attributes)
+
+        query = f"""
+        CREATE TABLE IF NOT EXISTS {table_name} (
+            {columns_sql}
+        );
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error creating table:", e)
+
+    def get_all(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {table_name};")
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+        
+    def get_singleton(self, singleton_table):
+        try:
+            cursor = self.conn.execute(f"SELECT * FROM {singleton_table}")
+            return [row[0] for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def get_by(self, table_name, column, value):
+        try:
+            query = f"SELECT * FROM {table_name} WHERE {column} = ?;"
+            cursor = self.conn.execute(query, (value,))
+            return [dict(row) for row in cursor.fetchall()]
+        except Exception as e:
+            print("Error selecting:", e)
+            return []
+
+    def insert(self, table_name, data: dict):
+        keys = ", ".join(data.keys())
+        placeholders = ", ".join("?" for _ in data)
+        values = tuple(data.values())
+
+        query = f"""
+        INSERT INTO {table_name} ({keys})
+        VALUES ({placeholders});
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, values)
+        except Exception as e:
+            print("Error inserting:", e)
+
+    def update(self, table_name, data: dict, where_column, where_value):
+        set_clause = ", ".join(f"{key} = ?" for key in data.keys())
+        values = list(data.values())
+        values.append(where_value)
+
+        query = f"""
+        UPDATE {table_name}
+        SET {set_clause}
+        WHERE {where_column} = ?;
+        """
+
+        try:
+            with self.conn:
+                self.conn.execute(query, tuple(values))
+        except Exception as e:
+            print("Error updating:", e)
+
+    def delete(self, table_name, where_column, where_value):
+        query = f"DELETE FROM {table_name} WHERE {where_column} = ?;"
+
+        try:
+            with self.conn:
+                self.conn.execute(query, (where_value,))
+        except Exception as e:
+            print("Error deleting:", e)
+            
+    def clear(self, table_name):
+        query = f"DELETE FROM {table_name};"
+        
+        try:
+            with self.conn:
+                self.conn.execute(query)
+        except Exception as e:
+            print("Error clearing table: ", e)
+
+    def exists(self, table_name, where_column, where_value):
+        query = f"SELECT 1 FROM {table_name} WHERE {where_column} = ? LIMIT 1;"
+
+        try:
+            cursor = self.conn.execute(query, (where_value,))
+            return cursor.fetchone() is not None
+        except Exception as e:
+            print("Error checking existence:", e)
+            return False
+
+    def count(self, table_name):
+        try:
+            cursor = self.conn.execute(f"SELECT COUNT(*) as total FROM {table_name};")
+            return cursor.fetchone()["total"]
+        except Exception as e:
+            print("Error counting:", e)
+            return 0
+
+    def close(self):
+        self.conn.close()
+        
+class RecipesUI():
+    def __init__(self, root, title = "AII"):
+        self.root = root
+        self.root.title(title)
+        self.root.geometry("900x600")
+                
+        # Menu Principal
+        self.menu = tk.Menu(self.root)
+        self.root.config(menu=self.menu)
+
+        # Menu Datos
+        datos_menu = tk.Menu(self.menu, tearoff=0)
+        datos_menu.add_command(label="Cargar", command=lambda: self.callback("cargar"))
+        datos_menu.add_separator()
+        datos_menu.add_command(label="Salir", command=self.root.quit)
+        self.menu.add_cascade(label="Datos", menu=datos_menu)
+
+        # Menu Listar
+        listar_menu = tk.Menu(self.menu, tearoff=0)
+        listar_menu.add_command(label= "Recetas", command = lambda:  self.callback("listar_recetas"))
+        self.menu.add_cascade(label="Listar", menu=listar_menu)
+
+        # Menu Buscar
+        buscar_menu = tk.Menu(self.menu, tearoff=0)
+        buscar_menu.add_command(label="Receta por autor", command=lambda: self.callback("buscar_autor"))
+        buscar_menu.add_command(label="Receta por fecha", command=lambda: self.callback("buscar_fecha"))
+        self.menu.add_cascade(label="Buscar", menu=buscar_menu)
+
+        # Callback externo desde el punto de entrada
+        self.callback = None
+        
+    def show_list(self, items, fields, title="Listado"):
+        mw = tk.Toplevel(self.root)
+        mw.title(title)
+        listbox = tk.Listbox(mw, width=80, height=20)
+        listbox.pack(side="left", fill="both", expand=True)
+        scrollbar = tk.Scrollbar(mw)
+        scrollbar.pack(side="right", fill="y")
+        listbox.config(yscrollcommand=scrollbar.set)
+        scrollbar.config(command=listbox.yview)
+        
+        for item in items:
+            row = " | ".join(str(item[field]) for field in fields)
+            listbox.insert("end", row)
+            
+    def ask_text(self, label, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        entry = ttk.Entry(mw)
+        entry.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(entry.get()), mw.destroy()]).pack(pady=10)   
+    
+    def ask_spinbox(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        spinbox = ttk.Spinbox(mw, values=options, state="readonly", width=40)
+        spinbox.pack(pady=5)
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(spinbox.get()), mw.destroy()]).pack(pady=10)
+        
+    def ask_radiobutton(self, label, options, callback):
+        mw = tk.Toplevel(self.root)
+        mw.title(label)
+        tk.Label(mw, text=label).pack(pady=5)
+        sv = tk.StringVar(value=options[0])
+        for option in options:
+            tk.Radiobutton(mw, text=option, variable=sv, value=option).pack(anchor="w")
+        ttk.Button(mw, text="Aceptar", command=
+                    lambda: [callback(sv.get()), mw.destroy()]).pack(pady=10)
+        
+    def info(slef, message):
+        messagebox.showinfo("Información", message)
+
+# --- MAIN PROGRAM FUNCTIONS -----------------------------
+dbm = DBManager(DB_PATH)
+
+def init_ssl():
+    import os, ssl
+    if (not os.environ.get('PYTHONHTTPSVERIFY', '') and
+    getattr(ssl, '_create_unverified_context', None)):
+        ssl._create_default_https_context = ssl._create_unverified_context
+
+def create_tables():
+    recipes_attr = [
+        DBAttr("title", "TEXT", "NOT NULL"),
+        DBAttr("difficulty", "TEXT", "DEFAULT NULL"),
+        DBAttr("units", "INTEGER", "DEFAULT NULL"),
+        DBAttr("duration", "INTEGER", "DEFAULT NULL"),
+        DBAttr("author", "TEXT", "NOT NULL"),
+        DBAttr("updated_at", "DATE", "NOT NULL")
+    ]
+
+    dbm.create_table("recipes", recipes_attr)
+    
+def parse_duration(duration):
+    if not duration:
+        return None
+
+    duration = duration.strip().lower()
+
+    hours = 0
+    minutes = 0
+
+    h_match = re.search(r"(\d+)h", duration)
+    m_match = re.search(r"(\d+)m", duration)
+
+    if h_match:
+        hours = int(h_match.group(1))
+
+    if m_match:
+        minutes = int(m_match.group(1))
+
+    return hours * 60 + minutes
+
+def parse_duration_inverse(minutes):
+    if minutes is None:
+        return None
+    m = minutes % 60
+    h = (minutes - m) // 60
+    return f"{h}h {m}m" if h != 0 else f"{m}m"
+
+def persist_recipes():
+    f = urllib.request.urlopen(RECIPES_URL)
+    bs = BeautifulSoup(f, "lxml")
+    results = bs.find_all("div", attrs={"data-js-selector": "resultado"})
+    for div in results:
+        title_a = div.a
+        title = title_a.string.strip()
+        info_div = div.find("div", class_="info_snippet")
+        difficulty = info_div.find("span").get_text(strip=True) if info_div and info_div.find("span") else None
+        properties = div.find("div", class_="properties")
+        duration = properties.find("span", class_="duracion").string.strip() if properties and properties.find("span", class_="duracion") else None
+        units = properties.find("span", class_="unidades").string.strip() if properties and properties.find("span", class_="unidades") else None
+        details_link = title_a["href"]
+        f2 = urllib.request.urlopen(details_link)
+        bs2 = BeautifulSoup(f2, "lxml")
+        details = bs2.find("div", class_="autor").find("div", class_="nombre_autor")
+        author = details.find("a").string
+        date_str = details.find("span").string.replace("Actualizado: ", "")
+        updated_at = datetime.strptime(date_str, "%d %B %Y")
+                
+        dbm.insert("recipes", {
+            "title": title,
+            "difficulty": difficulty,
+            "units": units,
+            "duration": parse_duration(duration),
+            "author": author,
+            "updated_at": updated_at
+        })
+        
+    return dbm.count("recipes")
+        
+def main():
+    locale.setlocale(locale.LC_TIME, "es_ES.UTF-8")        
+    create_tables()
+    root = Tk()
+    ui = RecipesUI(root)
+
+    def handle_action(action):
+        match(action):
+            case "cargar":
+                resp = messagebox.askyesno(title="Cargar", message="Quieres cargar todos los datos de nuevo?")
+                if resp:
+                    dbm.clear("recipes")
+                    recipes_count = persist_recipes()
+                    ui.info(f"Hay {recipes_count} recetas")
+            case "listar_recetas":
+                recipes = dbm.get_all("recipes")
+                for r in recipes:
+                    r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+                    r["duration"] = parse_duration_inverse(r["duration"])
+                ui.show_list(recipes, ["title", "difficulty", "units", "duration"])
+            case "buscar_autor":
+                def search_author(author):
+                    recipes = [recipe for recipe in dbm.get_all("recipes") if author.lower() in recipe["author"].lower()]
+                    for r in recipes:
+                        r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+                        r["duration"] = parse_duration_inverse(r["duration"])
+                    ui.show_list(recipes, ["title", "difficulty", "units", "duration", "author"])
+                ui.ask_text("Buscar por autor: ", search_author)
+            case "buscar_fecha":
+                def search_date(date):
+                    d = datetime.strptime(date, "%d/%m/%Y")
+                    recipes = [recipe for recipe in dbm.get_all("recipes") 
+                            if d > datetime.strptime(recipe["updated_at"], "%Y-%m-%d %H:%M:%S")]
+                    for r in recipes:
+                        r["units"] = str(r["units"]) + " personas" if r["units"] is not None else "Unknown personas"
+                        r["duration"] = parse_duration_inverse(r["duration"])
+                    ui.show_list(recipes, ["title", "difficulty", "units", "duration", "updated_at"])
+                ui.ask_text("Buscar por fecha: ", search_date)
+           
+    ui.callback = handle_action
+    root.mainloop()
+    dbm.close()
+            
+if __name__ == "__main__":
+    main()

requirements.txt

@@ -1,3 +1,4 @@
 lxml
 bs4
 requests
+whoosh