Try adding a space before the c. It is not PEP-8 compliant but eliminates the little c.
def f( c): #NOTE: Space added before the 'c' due to Bulletin Board limitations (space should not be there) passLewis
To paraphrase: 'Throw out your dead' code. https://www.youtube.com/watch?v=grbSQ6O6kbs Forward to 1:00