how to scroll in python selenium code example

Example 1: how to scroll by in selenium python

for i in range(20): # adjust integer value for need
       # you can change right side number for scroll convenience or destination 
       driver.execute_script("window.scrollBy(0, 250)")
       # you can change time integer to float or remove
       time.sleep(1)

Example 2: scrfoll with selenium python

driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")