I have recently encountered an issue whenever I try and use pygame. The window that comes up hangs and just ends up crashing. I know this program works because I have run it many times before (this also occurs with anything else I try and run in pygame). Strangely, in the command prompt window it asks an input question from a completely unrelated program I was working on last night.
Seems to be a setup problem. 
possible solutions:

rename files (as Mooper suggested)
create the smallest possible use for pygame (once without / once with windows popping up), in order to tell us where the error comes up / does not.
look at the code again; seems to me being an error with a neverending loop / overflowing stack  / a function not returning after being called.
last possible idea: reinstall pygame
Pygame crashing