[Python] How to initialize variables to None/Undefined and compare to other variables in...

Basically I have some variables that I don't want to preinitialize:

originalTime = None
recentTime = None
postTime = None

def DoSomething ( ) :
if originalTime == None or (postTime - recentTime).seconds > 5 :
...


I get compile error on the if:

UnboundLocalError: local variable 'originalTime' referenced before assignment


As you can see, all the variables have different relationship that either has to be set right (time, time + 5, etc) or None at all, but I don't wanna set them to precalculated values when just declaring them to None is easier.

Any ideas?

Continue reading...