import requests
from bs4 import BeautifulSoup


url = 'https://minfin.com.ua/currency/nbu/'

source = requests.get(url)
main_text = source.text
soup = BeautifulSoup(main_text, 'html.parser')
table = soup.find('table', {'class': 'table-auto'})
tr = table.findAll('td', {'class': 'responsive-hide'})

money = {'dollar': None,
         'euro': None,
         'rubl': None,
         'zloty': None,
         'frank': None,
         'pound': None}

curr = ['dollar','euro', 'rubl','zloty', 'frank','pound']
kurs = []
tupl = None

for t in tr:
    kurs.append(t.text[1:8])

tupl = [*zip(curr, kurs)]

for t in tupl:
    money[t[0]] = t[1]

while True:
    vibor = input("Выберите валюту: dollar, euro, rubl, zloty, frank, pound ")
    if vibor == "dollar":
        print("Курс доллара " + str(money['dollar']))
        break
    elif vibor == "euro":
        print("Курс евро" + str(money['euro']))
        break
    elif vibor == "rubl":
        print("Курс рубля " + str(money['rubl']))
        break
    elif vibor == "zloty":
        print("Курс польского злотого " + str(money['zloty']))
        break
    elif vibor == "frank":
        print("Курс швейцарского франка " + str(money['frank']))
        break
    elif vibor == "pound":
        print("Курс английского фунта " + str(money['pound']))
        break