From Google, a tool to automatically format your Python code, even beyond what PEP8 prescribes:

https://github.com/google/yapf I always thought Go's gofmt tool (and convention) were a great asset to that community. It'd be awesome to have the same for Python. YAPF is pre-alpha but interesting enough to share now. =) Juan. PS: This is apparently not an April Fool's joke. =P