Poetry doesn't work If you have no local .venv folder but have pygame==1.9.1release in system python folder

[buriy]

[ValueError]
Unable to parse "=1.9.1release".
Exception trace:
/usr/local/lib/python3.5/dist-packages/cleo/application.py in run() at line 94
status_code = self.do_run(input_, output_)
/usr/local/lib/python3.5/dist-packages/poetry/console/application.py in do_run() at line 84
return super(Application, self).do_run(i, o)
/usr/local/lib/python3.5/dist-packages/cleo/application.py in do_run() at line 197
status_code = command.run(input_, output_)
/usr/local/lib/python3.5/dist-packages/poetry/console/commands/command.py in run() at line 77
return super(BaseCommand, self).run(i, o)
/usr/local/lib/python3.5/dist-packages/cleo/commands/base_command.py in run() at line 146
status_code = self.execute(input_, output_)
/usr/local/lib/python3.5/dist-packages/cleo/commands/command.py in execute() at line 107
return self.handle()
/usr/local/lib/python3.5/dist-packages/poetry/console/commands/install.py in handle() at line 35
self.poetry.pool
/usr/local/lib/python3.5/dist-packages/poetry/installation/installer.py in init() at line 55
installed = self._get_installed()
/usr/local/lib/python3.5/dist-packages/poetry/installation/installer.py in _get_installed() at line 509
return InstalledRepository.load(self._venv)
/usr/local/lib/python3.5/dist-packages/poetry/repositories/installed_repository.py in load() at line 22
repo.add_package(Package(name, version, version))
/usr/local/lib/python3.5/dist-packages/poetry/packages/package.py in init() at line 52
self._version = Version.parse(version)
/usr/local/lib/python3.5/dist-packages/poetry/semver/version.py in parse() at line 151
raise ValueError('Unable to parse "{}".'.format(text))

Poetry

• Version: 0.10.0-alpha.0
• Python: 3.5.3

Virtualenv

• Python: 3.5.3
• Implementation: CPython
• Path: /home/buriy/.cache/pypoetry/virtualenvs/newsloader-py3.5

System

• Platform: linux
• OS: posix

[jacebrowning]

@buriy Are you sure this exception is not simply caused by "1.9.1release" failing to conform to the versioning scheme (https://www.python.org/dev/peps/pep-0440/)?

[sdispater]

Yes, 1.9.1release is not a supported version format. However it seems that it was installed before in your environment without any problem, maybe with pip?

[buriy]

@sdispater @jacebrowning yes I guess so, it was "pygame===1.9.1release" in system python folder.
Which is apparently checked only when poetry creates its own virtualenv for a project (is it created with --use-system-packages ?).
So: Poetry might give a warning, but it shouldn't break operations when seeing an incorrect version in system python folder.

[github-actions]

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