Capturing screenshots of website with Python

August 19, 2015

If you google how to do a screenshot of a website then you will probably end with an answer depending on PyQT and WebKit. Sadly, PyQt is not a python package that you can install easily via pip and you will few others dependencies to be able to generate a screenshot of a site.

This post describes an easier solution depending only on Selenium and PhantomJS. Selenium can easily be installed by pip and phantomJS via your package manager or npm. On OSX, it's just a matter of doing:

brew install phantomjs # or npm -g phantomjs 
pip install selenium

At the opposite of installing PyQT, it should be without problems. Once you have Selenium and PhantomJS installed then it becomes simple to write the small python code required to generate the screenshot of a website.

from selenium import webdriver
depot = DepotManager.get()
driver = webdriver.PhantomJS()
driver.set_window_size(1024, 768) # set the window size that you need 

The code above is all you need to generate a screenshot of a website. Webdriver offers others API like get_screenshot_as_png() which return a binary and can be useful to create an image in memory if you want to manipulate before saving it.