PEP8，vim和代码块

Question

Sometimes, I am working on old Python code where PEP8 was not followed at all. I could run autopep8 on the whole code but that would generate a large diff. What I want is to be able to select a block of Python code (via vim) and have just that block auto configured so that it obeys PEP8.

With C++, you can use astyle with :20,40!astyle to do just that.

Is there a vim equivalent?

Note that this is a clear example of not reading the man page for autopep8...

Answer 1

OK, from reading autopep8's documentation, something like:

:20,40!autopep8 -i -

or (that was actually my first idea):

:20,40!autopep8 -

should work.

The general mechanism is called "filtering" and you can read all about it in :h filter .