selenium же ;-)
0. python -m pip install selenium;
качаем, geckodriver
https://github.com/mozilla/geckodriver/releases
вынимаем из архива, прописываем его место нахождения в PATH
1. пишем скриптик
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
import os
binary = FirefoxBinary(r'C:\PortableApps.com\PortableApps\FirefoxPortable\App\Firefox\firefox.exe')
driver = webdriver.Firefox(firefox_binary=binary)
driver.get("https://perevod.mtbank.by/")
elem = driver.find_element_by_name("from0")
elem.clear()
elem.send_keys("1234234563456456723")
elem1 = driver.find_element_by_name("to0")
elem1.send_keys("1234234563456456723")
driver.close()
2. Допиливаем пример напильником
3. ...
4 PROFIT
