Pyssla is a rule-based source code analyzer for Python.
TL;DR: Pyssla will check if your Python code is decent shape.
Pyssla will analyse Python code and see if it conforms to a set of rules. There are rules for all kinds of different things ranging from naming of local variables to cyclomatic complexity.
For a complete list of rules, see RULES.md.
Install it from PyPi:
$ pip install pyssla
Run pyssla against your python files:
$ pyssla ../pyflakes/pyflakes/*.py
../pyflakes/pyflakes/api.py: 59: too short variable name
../pyflakes/pyflakes/api.py: 62: too short variable name
../pyflakes/pyflakes/api.py: 81: too short variable name
../pyflakes/pyflakes/api.py: 129: too short variable name
../pyflakes/pyflakes/checker.py: 208: interface function should come before class, internal function or class and after module docstring, import, constant, exception class
../pyflakes/pyflakes/checker.py: 216: too many methods: 43
../pyflakes/pyflakes/checker.py: 216: excessive number of public methods: 42
../pyflakes/pyflakes/checker.py: 216: excessive class length: 643 lines
../pyflakes/pyflakes/checker.py: 368: too short variable name
../pyflakes/pyflakes/checker.py: 394: function is too cyclomatic complex: 17
../pyflakes/pyflakes/checker.py: 442: function is too cyclomatic complex: 14
../pyflakes/pyflakes/checker.py: 481: function is too cyclomatic complex: 14
../pyflakes/pyflakes/checker.py: 586: too short variable name
../pyflakes/pyflakes/checker.py: 672: too short variable name
../pyflakes/pyflakes/checker.py: 672: too short variable name
../pyflakes/pyflakes/checker.py: 713: excessive function length: 61 lines
../pyflakes/pyflakes/checker.py: 713: function is too cyclomatic complex: 16
../pyflakes/pyflakes/checker.py: 818: too short variable name
../pyflakes/pyflakes/example.py: 4: too short variable name
../pyflakes/pyflakes/messages.py: 68: exception class should come before interface function, class, internal function or class and after module docstring, import, constant
../pyflakes/pyflakes/rules.py: 14: interface function should come before class, internal function or class and after module docstring, import, constant, exception class