Python not interpreting changed files, using obsolete .pyc

Question

Using the Google App Engine to develop in python yesterday it stopped running the current version of the script. Instead of executing the most recent version it seems to run

Answer 1

Did you check your system clock? I believe python determine whether to use the .pyc or .py based on timestamps. If your system clock got pushed back, then it would see the .pyc files as newer until the system clock caught up to the last time they were built.