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Helium

Lighter web automation for Python

Install 

pip install helium

Simple example

Because Helium is simply a wrapper around Selenium, you can freely mix the two libraries. For example: 

# A Helium function:
driver = start_chrome()
# or headless node
# driver = start_chrome(headless=True)

# A Selenium API:
driver.execute_script("alert('Hi!');")

Selenium Firefox and saving webpage as PDF 

#!/usr/bin/env python3
from time import sleep

from helium import start_firefox
from selenium.webdriver import FirefoxOptions

options = FirefoxOptions()
options.add_argument("--start-maximized")
options.set_preference("print.always_print_silent", True)
options.set_preference("print.printer_Mozilla_Save_to_PDF.print_to_file", True)
options.set_preference("print_printer", "Mozilla Save to PDF")

driver = start_firefox("https://www.deskriders.dev/posts/1639863087-python-selenium/", options=options)

driver.execute_script("window.print();")
sleep(2)  # Found that a little wait is needed for the print to be rendered otherwise the file will be corrupted

driver.quit()

See also

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