How to append to PYTHONPATH in Tornado so Handlers can use other libraries?
Question: I am attempting to start a Tornado web server, but I need the Handlers to be
able to import libraries from a custom path. I cannot simply add
sys.path.append('..') when launching Tornado, so how do I do it?


Answer: 
    import sys
    sys.path.append('/home/user/py/lib')
    

