[PUP-10015] pip provider doesn't handle arbitrary equality - Puppet Tickets

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Release Notes:
Bug Fix
Release Notes Summary:

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Previously puppet incorrectly parsed the output of "pip freeze" when it reported package versions using the arbitrary equality operator "===". As a result, puppet would think the package wasn't installed, and try to (re)install it during every puppet run.

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Previously puppet incorrectly parsed the output of "pip freeze" when it reported package versions using the arbitrary equality operator "===". As a result, puppet would think the package wasn't installed, and try to (re)install it during every puppet run.

Puppet Version: 5.5.6
Puppet Server Version: 5.3.5
OS Name/Version: Ubuntu 18.04

The current pip provider doesn't support Python's arbitrary equality https://www.python.org/dev/peps/pep-0440/#arbitrary-equality

When encountering a python package specified with arbitrary equality via pip freeze, it fails to parse the package and keeps trying to install it

e.g.

$ pip freeze | grep pytz

pytz===2012f

Desired Behavior: Pip Provider correctly handles arbitrary equality

Actual Behavior: Pip Provider incorrectly handles arbitrary equality

is duplicated by

PUP-2905 When installing PIP packages from sources different than pypi, the install and any notifies are triggered during every run.