Конвертер валют с интерфейсом на python

from currency_converter import CurrencyConverter

from tkinter import *

def exchange():

e_usd.delete(0, END)

e_eur.delete(0, END)

e_gbp.delete(0, END)

e_usd.insert(0, '%.2f' % c.convert(e_rub.get(), 'RUB', 'USD'))

e_eur.insert(0, '%.2f' % c.convert(e_rub.get(), 'RUB', 'EUR'))

e_gbp.insert(0, '%.2f' % c.convert(e_rub.get(), 'RUB', 'GBP'))

root = Tk()

root.title('Конвертер валют')

root.geometry('300x250+300+300')

root.resizable(width=False, height=False)

root['bg'] = 'black'

c = CurrencyConverter()

header_frame = Frame(root)

header_frame.pack(fill=X)

header_frame.grid_columnconfigure(0, weight=1)

header_frame.grid_columnconfigure(1, weight=1)

header_frame.grid_columnconfigure(2, weight=1)

h_currency = Label(header_frame, text='Валюта', bg='black', fg='lime', font='Arial 12 bold')

h_currency.grid(row=0, column=0, sticky=EW)

h_course = Label(header_frame, text='Курс', bg='black', fg='lime', font='Arial 12 bold')

h_course.grid(row=0, column=1, columnspan=2, sticky=EW)

# USD курс

usd_currency = Label(header_frame, text='USD', font='Arial 10')

usd_currency.grid(row=1, column=0, sticky=EW)

usd_one = Label(header_frame, text='1', font='Arial 10')

usd_one.grid(row=1, column=1, sticky=EW)

usd_converted = Label(header_frame, text='%.2f' % c.convert(1, 'USD', 'RUB'), font='Arial 10')

usd_converted.grid(row=1, column=2, sticky=EW)

# EUR курс

eur_currency = Label(header_frame, text='EUR', font='Arial 10')

eur_currency.grid(row=2, column=0, sticky=EW)

eur_one = Label(header_frame, text='1', font='Arial 10')

eur_one.grid(row=2, column=1, sticky=EW)

eur_converted = Label(header_frame, text='%.2f' % c.convert(1, 'EUR', 'RUB'), font='Arial 10')

eur_converted.grid(row=2, column=2, sticky=EW)

# GBP курс

gbp_currency = Label(header_frame, text='GPB', font='Arial 10')

gbp_currency.grid(row=3, column=0, sticky=EW)

gbp_one = Label(header_frame, text='1', font='Arial 10')

gbp_one.grid(row=3, column=1, sticky=EW)

gbp_converted = Label(header_frame, text='%.2f' % c.convert(1, 'GBP', 'RUB'), font='Arial 10')

gbp_converted.grid(row=3, column=2, sticky=EW)

calc_frame = Frame(root, bg='black')

calc_frame.pack(expand=1, fill=BOTH)

calc_frame.grid_columnconfigure(1, weight=1)

# RUB

l_rub = Label(calc_frame, text='Рубли: ', bg='black', fg='lime', font='Arial 12 bold')

l_rub.grid(row=0, column=0, padx=10)

e_rub = Entry(calc_frame, justify=CENTER, font='Arial 10')

e_rub.grid(row=0, column=1, columnspan=2, pady=10, padx=10, sticky=EW)

btn_calc = Button(calc_frame, text='Конвертировать', command=exchange)

btn_calc.grid(row=1, column=1, columnspan=2, sticky=EW, padx=10)

res_frame = Frame(root)

res_frame.pack(expand=1, fill=BOTH, pady=5)

res_frame.grid_columnconfigure(1, weight=1)

# USD

l_usd = Label(res_frame, text='USD', font='Arial 10 bold')

l_usd.grid(row=2, column=0)

e_usd = Entry(res_frame, justify=CENTER, font='Arial 10')

e_usd.grid(row=2, column=1, columnspan=2, padx=10, sticky=EW)

# EUR

l_eur = Label(res_frame, text='EUR', font='Arial 10 bold')

l_eur.grid(row=3, column=0)

e_eur = Entry(res_frame, justify=CENTER, font='Arial 10')

e_eur.grid(row=3, column=1, columnspan=2, padx=10, sticky=EW)

# GBP

l_gbp = Label(res_frame, text='GBP', font='Arial 10 bold')

l_gbp.grid(row=4, column=0)

e_gbp = Entry(res_frame, justify=CENTER, font='Arial 10')

e_gbp.grid(row=4, column=1, columnspan=2, padx=10, sticky=EW)

print(c.bounds['USD'])

root.mainloop()