如何在 PyCharm 中为 flake8 启用自动代码格式化

Question

I use Tox to run unit tests, with a flake8 command that checks for code formatting errors. Each time I code in PyCharm, I run tox then realise I have a bunch of annoying formatting errors I have to back and manually fix. I would like PyCharm to automatically format the code (according to flake8 google for me each time it auto-saves after I stop typing.

my tox testenv looks like this:

[testenv:flake8]
commands=flake8 <my_code_directory>
deps =     
  flake8==2.4.1    
  flake8-import-order==0.11    
  pep8-naming==0.4.1 

[flake8] 
max-line-length = 120 
import-order-style = google

Is this possible? Do I have to download a specific plugin somewhere? If not with flake8, what about just PEP-8?

Answer 1

Flake8 and import ordering are not auto-fixable in a way that complies with what you're seeing. You can auto-fix pep8 with autopep8.

There are discussions here about implementing this for Flake8 though.

Answer 2

For automatically sorting import statements use isort . Consider using black to auto-format your Python code.

Answer 3

The tool you want is probably autopep8 . This is especially because the warning codes it uses correspond to the flake8 ones.

For example, if you want to autofix all instances of E701 multiple statements on a single line warning, run the following

for f in `find -name "*.py"`; do autopep8 --in-place --select=E701 $f; done