I am developing a project called Inspector Tiger (from monty python :)) and with that project i am trying to perform a static check over the source code to find common mistakes. If you know a common mistaken pattern, it would be really great to share it with me or implement it and PR to inspector tiger.
Source: https://github.com/thg-consulting/inspectortiger -- https://mail.python.org/mailman/listinfo/python-list
