Amazing-Python-Scripts

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import requests
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import tkinter as tk
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from tkinter import ttk
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def calculate_conversion():
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    # URL of respective API
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    url = "https://api.exchangerate-api.com/v4/latest/INR"
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    # Receive Data from API
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    data = requests.get(url).json()
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    currency_rates = data['rates']
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    # get From amount from GUI
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    try:
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        amount = float(from_amount.get())
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        answer.config(text="Successful !")
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    except ValueError:
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        answer.config(text="*Invalid input.Please enter number.")
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    # Get country code from GUI
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    fc = from_currency_code.get()
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    tc = to_currency_code.get()
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    # Logic to convert amount to INR (if county code is not INR)
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    if fc != 'INR':
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        amount = amount/currency_rates[fc]
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    # INR to To_country code
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    amount = amount * currency_rates[tc]
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    amount = round(amount, 2)
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    # Set amount to Label in GUI
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    to_amount.config(text=str(amount))
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if __name__ == '__main__':
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    # url and data extraction
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    url = "https://api.exchangerate-api.com/v4/latest/INR"
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    data = requests.get(url).json()
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    currency_rates = data['rates']
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    # Building of GUI
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    screen = tk.Tk()
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    screen.title("Currency convertor")
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    screen.geometry("500x300")
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    screen.config(bg="#282828")
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    # Introduction Label
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    main_label = tk.Label(screen, text=" Welcome to Currency Convertor ")
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    main_label.config(font=("Lato", 15, "bold"),
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                      anchor="center", bg='#3500D3', fg='white')
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    main_label.place(x=70, y=10)
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    # from_amount input field and placing
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    from_amount = tk.Entry(screen, justify=tk.CENTER)
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    from_amount.place(x=58, y=180)
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    # Converted amount label and it's placing
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    to_amount = tk.Label(screen, anchor="center", bg='white',
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                         fg='black', width=16, font=("Lato", 12))
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    to_amount.place(x=300, y=180)
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    # Variable declation for dropdown menu and set default values
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    from_currency_code = tk.StringVar(screen)
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    from_currency_code.set("INR")
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    to_currency_code = tk.StringVar(screen)
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    to_currency_code.set("INR")
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    # dropdown menu for from_currency and it's placing
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    from_currency_menu = ttk.Combobox(screen, textvariable=from_currency_code, values=list(
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        currency_rates.keys()), font=("Lato", 12), state='readonly', width=14, justify=tk.CENTER)
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    from_currency_menu.place(x=61, y=110)
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    # dropdown menu for to_currency and it's placing
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    to_currency_menu = ttk.Combobox(screen, textvariable=to_currency_code, values=list(
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        currency_rates.keys()), font=("Lato", 12), state='readonly', width=14, justify=tk.CENTER)
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    to_currency_menu.place(x=303, y=110)
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    answer = tk.Label(screen, anchor="center", bg='#282828',
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                      fg='red', width=50, font=("Lato", 12), text="")
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    answer.place(x=50, y=220)
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    # Convert button and placing
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    convert_btn = tk.Button(
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        screen, text="Convert", fg='white', bg="#3500D3", command=calculate_conversion)
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    convert_btn.place(x=230, y=260)
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    screen.mainloop()
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