Fix silly bugs in pde2py that caused overwrites despite -f flag.
Fix silly bugs in pde2py that caused overwrites despite -f flag.

mashrin/processing.py,Luxapodular/processing.py,Luxapodular/processing.py,tildebyte/processing.py,mashrin/processing.py,jdf/processing.py,tildebyte/processing.py,jdf/processing.py,mashrin/processing.py,jdf/processing.py,tildebyte/processing.py,Luxapodular/processing.py