pyflakes best practices?

[Roy Smith]

We've recently started using pyflakes. The results seem to be similar
to most tools of this genre. It found a few real problems. It
generated a lot of noise about things which weren't really wrong, but
were easy to fix (mostly, unused imports), and a few plain old false
positives which have no easy "fix" (in the sense of, things I can change
which will make pyflakes STFU).

So, what's the best practice here? How do people deal with the false
positives? Is there some way to annotate the source code to tell
pyflakes to ignore something?

 

[Mark Lawrence]

We've recently started using pyflakes. The results seem to be similar
to most tools of this genre. It found a few real problems. It
generated a lot of noise about things which weren't really wrong, but
were easy to fix (mostly, unused imports), and a few plain old false
positives which have no easy "fix" (in the sense of, things I can change
which will make pyflakes STFU).

So, what's the best practice here? How do people deal with the false
positives? Is there some way to annotate the source code to tell
pyflakes to ignore something?

I was under the impression that pyflakes was configurable. It it isn't
I'd simply find another tool. Having said that if you don't get better
answers here try gmane.comp.python.code-quality.

 

[Roy Smith]

I was under the impression that pyflakes was configurable. It it isn't
I'd simply find another tool. Having said that if you don't get better
answers here try gmane.comp.python.code-quality.

I didn't know that list existed, it looks very interesting. Thanks for
the pointer!

 

[Mark Lawrence]

I didn't know that list existed, it looks very interesting. Thanks for
the pointer!

FYI the full list of Python lists on gmane here
http://dir.gmane.org/index.php?prefix=gmane.comp.python

 

[Roland Koebler]

Hi,

I would recommend to use Pylint (http://www.pylint.org/) in addition
to pyflakes. Pylint is much more powerful than pyflakes, and largely
configurable.

Regards
Roland

 

[Miki Tebeka]

Greetings,

So, what's the best practice here? How do people deal with the false
positives? Is there some way to annotate the source code to tell
pyflakes to ignore something?

We use flake8 (pyflakes + pep8) as pre step for the tests. We fail the tests on any output from flake8.

flake8 supports ignoring certain lines by appending a comment starting with # NOQA

HTH,