Cannot install pre-commit pip.

[pillarsdotnet]

Using the puppet-python moodule to install the pre-commit pip results in the following command and output:

pip --log /tmp/pip.log install --upgrade --no-binary :all: pre-commit
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting pre-commit
  Using cached https://files.pythonhosted.org/packages/58/ab/ce9c21f70238d150c3efb14fc6230017b24729cb482815ba65feba8a2ceb/pre_commit-1.16.1.tar.gz
  WARNING: Generating metadata for package pre-commit produced metadata for project name unknown. Fix your #egg=pre-commit fragments.
Installing collected packages: unknown
  Found existing installation: UNKNOWN 0.0.0
    Uninstalling UNKNOWN-0.0.0:
      Successfully uninstalled UNKNOWN-0.0.0
  Running setup.py install for unknown ... done
Successfully installed unknown-0.0.0

Is this normal and expected behavior?

[pillarsdotnet]

Cross-posted: pre-commit/pre-commit#1039

[pillarsdotnet]

@asottile said:

your setuptools version is too old, either upgrade that or remove --no-binary :all:

Sure enough, after adding the setuptools pip, the /usr/bin/pre-commit binary appeared on the next puppet run.

[pillarsdotnet]

@asottile continued:

it also looks like puppet-python is doing the wrong thing here -- it's assuming that if wheel isn't installed that pip can't install from wheels, which is completely wrong :S