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References: <82d1952c-5550-4316-9891-1c137e4f6b2e AT prover DOT com>
In-Reply-To: <82d1952c-5550-4316-9891-1c137e4f6b2e@prover.com>
Date: Thu, 17 Apr 2025 15:04:56 -0700
Message-ID: <CAJtSMgsXGmRff2etdoVOST1d+OZbV1EpkEt0_qpDFcO_Z6_Dag@mail.gmail.com>
Subject: Re: Packages needed to create a virtual environment in Python 3.9
To: Daniel Abrahamsson <daniel DOT abrahamsson AT prover DOT com>
Cc: cygwin AT cygwin DOT com
From: David Dyck via Cygwin <cygwin AT cygwin DOT com>
Reply-To: David Dyck <david DOT dyck AT gmail DOT com>
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I ran into this error today
 ( I was trying to use https://github.com/raulgotor/linkerscope.git )

but even with an empty folder  I get error message
even after I install  " python-pip-wheel" from setup

$ mkdir /tmp/pip-test ; cd /tmp/pip-test ; python3.9 -m venv venv
mkdir /tmp/pip-test ; cd /tmp/pip-test ; python3.9 -m venv venv
Error: Command '['/tmp/pip-test/venv/bin/python3.9.exe', '-Im',
'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

I also get errors from the AI suggested test of

$  python3 -m ensurepip
Traceback (most recent call last):
  File "/usr/lib/python3.9/runpy.py", line 188, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "/usr/lib/python3.9/runpy.py", line 147, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "/usr/lib/python3.9/runpy.py", line 111, in _get_module_details
    __import__(pkg_name)
  File "/usr/lib/python3.9/ensurepip/__init__.py", line 30, in <module>
    _SETUPTOOLS_VERSION = _get_most_recent_wheel_version("setuptools")
  File "/usr/lib/python3.9/ensurepip/__init__.py", line 27, in
_get_most_recent_wheel_version
    return str(max(_wheels[pkg], key=distutils.version.LooseVersion))
ValueError: max() arg is an empty sequence


chatgpt did suggest that cygwin had issues with ensurepip


On Wed, Mar 5, 2025 at 2:29 AM Daniel Abrahamsson via Cygwin <
cygwin AT cygwin DOT com> wrote:

> Hi,
>
> I have installed the following Python packages:
>
> * python39
> * python39-devel
> * python39-pip
>
> Then I've run `python3.9 -m venv venv`, which results in:
>
>  > Error: Command
> '['/home/daab/build-essentials/venv/bin/python3.9.exe', '-Im',
> 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status
> 1.
>
> Installing the package "python-pip-wheel" solves the error. I am
> wondering if the "venv" module ought to work out of the box, or if
> manually adding this additional package is what you are supposed to do?
> It was not very obvious to me, and I have failed to find any
> documentation on it. Is it just poor search skills on my side? Should
> perhaps python-pip-wheel be a dependency of python39-pip?
>
> Regards,
> Daniel
>
>
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