import requests
from bs4 import BeautifulSoup
def f(m, url):
    source = requests.get(url)
    main_text = source.text
    soup = BeautifulSoup(main_text, 'html.parser')
    table = soup.findAll('td')
    table = str(table)
    n = ''  
    for i in table: #отбирает с строки только числа 
        if i.isdigit():
            n += i
        else:
            if n.isdigit():
                m.append(float(n))
                n = ''
    if n != '':
        m.append(float(n))
m = []
url = 'URL_САЙТА'
f(m, url)
if len(m) < 100:
    dollar_buy = (m[0])
    dollar_sale = (m[2])
    euro_buy = (m[4])
    euro_sale = (m[6])
    tenge_buy = (m[9])
    tenge_sale = (m[11])

 import requests
from bs4 import BeautifulSoup
def f(m, url):
    source = requests.get(url)
    main_text = source.text
    soup = BeautifulSoup(main_text, 'html.parser')
    table = soup.findAll('td')
    table = str(table)
    n = ''
    for i in table: #отбирает с строки только числа
        if i.isdigit():
            n += i
        else:
            if n.isdigit():
                m.append(float(n))
                n = ''
    if n != '':
        m.append(float(n))
m = []
url = 'url_сайта'
f(m, url)
if len(m) < 100:
    dollar_buy = (m[0])
    dollar_sale = (m[2])
    euro_buy = (m[4])
    euro_sale = (m[6])
    tenge_buy = (m[9])
    tenge_sale = (m[11])