CurrencyConverter.py

# Convertidor de Moneda usando Python
# Destrezas:
# - Llamado de APIs
# - Crear una Interfaz Grafica
import tkinter as tk

class Converter:
    def __init__(self, master):
        frame = tk.Frame(master)
        frame.pack()

        lbl_monto = tk.Label(frame, text='Ingrese monto a convertir (ej. 4.09)')
        lbl_monto.pack()
        txt_monto = tk.Entry(frame)
        txt_monto.pack()
        btn_convertir = tk.Button(frame, text='Convertir', command=lambda: self.convertir(txt_monto.get()))
        btn_convertir.pack()
        self.txt_rates = tk.Text(frame, height=45)
        self.txt_rates.pack(fill=tk.X)

    def convertir(self, monto):  # Al pedirlo del Entry, viene como texto
        import requests

        try:
            monto = float(monto)
            self.txt_rates.delete(1.0, tk.END)

            res = requests.get('https://api.exchangeratesapi.io/latest?base=USD')
            rates = res.json()['rates']

            for currency, rate in rates.items():
                # print('USD {:.2f} -> {} {:.2f}'.format(monto, currency, monto * rate))
                self.txt_rates.insert(tk.END, 'USD {:.2f} -> {} {:.2f}\n'.format(monto, currency, monto * rate))
        except ValueError as e:
            print('Monto invalido.\n{}'.format(e))
        

        

if __name__ == "__main__":
    app = tk.Tk()
    root = Converter(app)
    app.geometry("400x400")
    app.mainloop()