crawl.py

import os
import sys
import time
from selenium import webdriver

channel = sys.argv[1]
driver = webdriver.Chrome()
url = os.path.join('https://www.youtube.com/user', channel, 'videos')
driver.get(url)

scroll_height = 0

while True:
  driver.execute_script('window.scrollTo(0, document.body.scrollHeight);')
  time.sleep(1)
  more = driver.find_elements_by_class_name('load-more-button')

  if len(more) == 0:
    break

  more = more[0]

  if more.is_displayed():
    more.click()

  curent_scroll_height = driver.execute_script(
    'return document.body.scrollHeight;')

  if scroll_height == curent_scroll_height:
    break

  scroll_height = curent_scroll_height

xpath = '//span[@class="yt-thumb-default"]/span[@class="yt-thumb-clip"]/img'
elements = driver.find_elements_by_xpath(xpath)
src_list = [element.get_attribute('src') for element in elements]
driver.quit()

with open(f'{channel}.txt', 'wt') as f:
  for src in src_list:
    print(src, file=f)