title: Trigger python code from Google spreadsheets?
body: <p>In excel you can create user defined functions with python using <code>pyxll</code>. I have been moving to Google spreadsheets and using their Google app script, but the libraries are so much bigger and better in python, I wish there was a way to build user defined functions using python from Google spreadsheets. There are ways to interact python with Google sheets like <code>gspread</code>. Is there a way to run python on Google app engine then get sheet to trigger that code? What other ways is there to trigger python code from Google spreadsheets?</p>