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Merge pull request mouredev#7648 from victorfer69/main
#10 - Python
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‎Roadmap/10 - EXCEPCIONES/python/victorfer69.py

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#Excepciones y errores
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try:
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print(10/1)
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my_list = [1,2,3,4]
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print(my_list[4])
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except Exception as e:
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print(f"ERROR: {e}")
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print("Hola a todos")
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#EJERCICIO EXTRA
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class StrTypeError(Exception):
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pass
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def extra(param:list):
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if len(param) < 3:
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raise IndexError()
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elif param[1] == 0:
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raise ZeroDivisionError()
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elif type(param[2]) != str:
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raise StrTypeError("El tercer elemento debe de ser una cadena de texto")
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print(param[2])
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print(param[0]/param[1])
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try:
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extra([1,2,"Hola"])
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except IndexError as e:
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print("ERROR: el numero de elementos de la lista debe ser mayor de 2")
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except ZeroDivisionError as e:
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print("ERROR: el segundo elemento de la lista no puede ser cero")
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except StrTypeError as e:
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print(f"ERROR: {e}")
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except Exception as e:
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print(f"ERROR inesperado: {e}")
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finally:
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print("FIN")

‎Roadmap/11 - MANEJO DE FICHEROS/python/victorfer69.py

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import os
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#EJERCICIO
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file_name = "victorfer69.txt"
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#Escribir en el fichero
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with open(file_name, "w") as file:
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file.write("Victor\n")
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file.write("21\n")
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file.write("Python")
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#Leer el fichero
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with open(file_name, "r") as file:
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print(file.read())
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#Borrar el fichero
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os.remove(file_name)
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#EJERCICIO EXTRA
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def gestionDeVentas(file_name:str):
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salir = False
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while not salir:
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print("1. Añadir producto")
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print("2. Consultar producto")
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print("3. Actualizar producto")
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print("4. Borrar producto")
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print("5. Mostrar productos")
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print("6. Calcular venta total")
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print("7. Calcular venta por producto")
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print("8. Salir")
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action = input("Seleccione el modo:")
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match action:
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case "1":
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name = input("Dame el nombre del producto: ")
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quantity = int(input("Dame la cantidad: "))
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price = float(input("Dame el precio: "))
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with open(file_name, "a") as file:
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if name != None and quantity != None and quantity > 0 and price != None and price > 0:
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file.write(f"{name}, {quantity}, {price}\n")
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else:
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print("Algún argumento invalido")
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case "2":
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product = input("¿Que producto quieres consultar?: ")
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existe = False
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with open(file_name, "r") as file:
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for line in file.readline():
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if line.split(",")[0] == product:
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print(line)
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existe = True
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if not existe:
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print(f"No hay {product}")
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case "3":
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name = input("Dame el nombre del producto: ")
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quantity = int(input("Dame la cantidad: "))
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price = float(input("Dame el precio: "))
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with open(file_name, "r") as file:
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lines = file.readlines()
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with open(file_name, "w") as file:
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for line in lines:
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if line.split(", ")[0] == name:
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file.write(f"{name}, {quantity}, {price}\n")
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else:
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file.write(line)
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case "4":
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name = input("Dame el nombre del producto: ")
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with open(file_name, "r") as file:
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lines = file.readlines()
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with open(file_name, "w") as file:
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for line in lines:
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if line.split(", ")[0] != name:
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file.write(line)
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case "5":
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with open(file_name, "r") as file:
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print(file.read())
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case "6":
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total = 0
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with open(file_name, "r") as file:
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for line in file.readlines():
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components = line.split(", ")
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quantity = int(components[1])
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price = float(components[2])
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total += quantity * price
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print(total)
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case "7":
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name = input("Nombre: ")
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total = 0
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existe = False
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with open(file_name, "r") as file:
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for line in file.readlines():
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components = line.split(", ")
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if components[0] == name:
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quantity = int(components[1])
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price = float(components[2])
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total += quantity * price
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existe = True
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break
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if existe:
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print(total)
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else:
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print(f"El producto {name} no existe")
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case "8":
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print("Saliendo del programa (borrando fichero)")
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os.remove(file_name)
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salir = True
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case _:
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print("Seleccione una opcion correcta.")
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#Fichero inicial
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with open("ventas.txt", "a") as file:
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file.write("Patata, 4, 0.25\n")
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file.write("Pan, 5, 0.2\n")
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file.write("Sopa, 2, 0.5\n")
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file.write("Carne, 1, 1\n")
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gestionDeVentas("ventas.txt")

‎Roadmap/12 - JSON Y XML/python/victorfer69.py

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import os
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import xml.etree.ElementTree as xml
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import json
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#EJERCICIO
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data = {
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"name" : "Victor",
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"age" : 21,
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"birthday" : "06-09-2003",
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"languages" : ["Python", "Java", "Swift"]
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}
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xml_file = "victorfer69.xml"
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json_file = "victorfer69.json"
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#XML
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def save_xml():
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root = xml.Element("data")
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for key, value in data.items():
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child = xml.SubElement(root, key)
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if isinstance(value, list):
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for item in value:
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child2 = xml.SubElement(child, "item").text = item
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else:
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child.text = str(value)
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tree = xml.ElementTree(root)
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tree.write(xml_file)
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save_xml()
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with open(xml_file, "r") as xml_data:
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print (xml_data.read())
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os.remove(xml_file)
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#JSON
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def save_json():
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with open(json_file, "w") as json_data:
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json.dump(data, json_data)
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save_json()
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with open(json_file, "r") as json_data:
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print(json_data.read())
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os.remove(json_file)
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#EJERCICIO EXTRA
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save_xml()
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save_json()
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class Data:
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def __init__(self, name, age, birthday, languages):
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self.name = name
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self.age = age
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self.birthday = birthday
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self.languages = languages
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with open(xml_file, "r") as xml_data:
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root = xml.fromstring(xml_data.read())
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name = root.find("name").text
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age = root.find("age").text
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birth_date = root.find("birthday").text
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programming_languages = []
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for item in root.find("languages"):
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programming_languages.append(item.text)
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xml_class = Data(name, age, birth_date, programming_languages)
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print(f"XML: {xml_class.__dict__}")
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with open(json_file, "r") as json_data:
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json_dict = json.load(json_data)
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json_class = Data(
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json_dict["name"],
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json_dict["age"],
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json_dict["birthday"],
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json_dict["languages"]
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)
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print(f"JSON: {json_class.__dict__}")
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os.remove(xml_file)
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os.remove(json_file)

‎Roadmap/13 - PRUEBAS UNITARIAS/python/victorfer69.py

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import unittest
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from datetime import datetime, date
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"""
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Ejercicio
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"""
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def sum(a, b):
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if not isinstance(a, (int, float)) or not isinstance(b, (int, float)):
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return ValueError("Los argumentos deben de ser enteros o decimales.")
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return a + b
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class TestSum(unittest.TestCase):
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def test_sum(self):
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self.assertEqual(sum(5, 7), 12)
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self.assertEqual(sum(5, -7), -2)
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self.assertEqual(sum(0, 0), 0)
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self.assertEqual(sum(5.1, 7.1), 12.2)
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def test_sum_type(self):
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with self.assertRaises(ValueError):
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sum("5", 7)
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with self.assertRaises(ValueError):
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sum(5, "7")
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with self.assertRaises(ValueError):
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sum("5", "7")
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#EJERCIICO EXTRA
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dicc = {
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"name": "Victor",
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"age": 21,
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"birth_date": "06-09-2003",
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"programming_languages": ["Python", "Java", "C"]
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}
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class TestSum(unittest.TestCase):
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def test_all_param(self):
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self.assertIn("name", dicc)
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self.assertIn("age", dicc)
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self.assertIn("birth_date", dicc)
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self.assertIn("programming_languages", dicc)
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def test_correct_data(self):
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self.assertIsInstance(dicc["name"], str)
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self.assertIsInstance(dicc["age"], int)
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self.assertIsInstance(dicc["birth_date"], str)
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self.assertIsInstance(dicc["programming_languages"], list)
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unittest.main()

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