I know there are tools which validate whether your Python code is compliant with PEP8, for example there is both an online service and a python module.
However, I cannot find a service or module which can convert my Python file to a self-contained, PEP8 valid Python file. Does anyone know if there are any?
I assume it's feasible since PEP8 is all about the appearance of the code, right?
You can use autopep8! Whilst you make yourself a cup of coffee this tool happily removes all those pesky PEP8 violations which don't change the meaning of the code.
Install it via pip:
pip install autopep8
Apply this to a specific file:
autopep8 py_file --in-place
or to your project (recursively), the verbose option gives you some feedback of how it's going:
autopep8 project_dir --recursive --in-place --pep8-passes 2000 --verbose
Note: Sometimes the default of 100 passes isn't enough, I set it to 2000 as it's reasonably high and will catch all but the most troublesome files (it stops passing once it finds no resolvable pep8 infractions)...
If you want "full" PEP8 compliance: one tactic I've used is to run autopep8 as above, then run PEP8, which prints the remaining violations (file, line number, and what):
pep8 project_dir --ignore=E501
and manually change these individually (e.g. E712s - comparison with boolean).
Note: autopep8 offers an
--aggressive argument (to ruthlessly "fix" these meaning-changing violations), but beware if you do use aggressive you may have to debug... (e.g. in numpy/pandas
True == np.bool_(True) but not
True is np.bool_(True)!)
pep8 --quiet --statistics .
Note: I consider E501s (line too long) are a special case as there will probably be a lot of these in your code and sometimes these are not corrected by autopep8.