Bug 472442 – dev-python/flake8-2.0 should depend on >=dev-python/mccabe-0.2

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Lukas Polacek 2013-06-05 21:07:32 UTC]

I installed flake8, but it crashes, because mccabe is missing. After installing mccabe everything works as expected.

Reproducible: Always

Steps to Reproduce:
1. Install flake8
2. Run flake8
Actual Results:  
Traceback (most recent call last):
  File "/usr/bin/flake8-python2.7", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib64/python2.7/site-packages/pkg_resources.py", line 2808, in <module>
    working_set.require(__requires__)
  File "/usr/lib64/python2.7/site-packages/pkg_resources.py", line 691, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/lib64/python2.7/site-packages/pkg_resources.py", line 589, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: mccabe>=0.2

Expected Results:  
flake8 shouldn't crash

Installing dev-python/mccabe-0.2.1 solved the problem.

[Comment 1 Ian Delaney (RETIRED) 2013-06-06 11:36:07 UTC]

NOTE my note in ebuild

# requires.txt inc. mccabe however that creates a circular dep
which granted you might not automatically have observed.
Perhaps someone else can suggest a way to enter mccabe for flake8 and resolve this circular dep issue

[Comment 2 Lukas Polacek 2013-06-06 11:49:05 UTC]

I don't know how to deal with circular dependencies, but at least elog or ewarn message would help. I don't look into ebuilds :)

Isn't a circular dependency an upstream bug?

[Comment 3 Ian Delaney (RETIRED) 2013-06-07 04:42:40 UTC]

(In reply to Lukas Polacek from comment #2)
> I don't know how to deal with circular dependencies, but at least elog or
> ewarn message would help. I don't look into ebuilds :)
> 
> Isn't a circular dependency an upstream bug?

Not sure really, but mb we can add the elog

[Comment 4 Ian Delaney (RETIRED) 2013-06-07 10:02:34 UTC]

  07 Jun 2013; Ian Delaney <[e-mail]> flake8-2.0.ebuild:
  Set mccabe to PDEPEND, fixes Bug #472442