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Date:	Tue, 10 Aug 2021 02:30:37 -0700
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Subject:	Re: virtualenv 20.2.2-1 dependencies: filelock and distlib
To:	Friedrich Romstedt <friedrichromstedt AT gmail DOT com>
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From:	Russell VT via Cygwin <cygwin AT cygwin DOT com>
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Well, it's been a hot minute since I've used virtualenv, by itself... but,
generally you're going to want to use "mkvirtualenv" and related tools to
create and then access your Python libraries (often under the
projects 'venv' directory).Your mileage may vary, trying to invoke it
directly from the command line with a module argument.

Myself, I tend to like to distance my Python environments from the
Operating System version(s)... and I use pyenv
<https://github.com/pyenv/pyenv> with pyenv-virtualenv
<https://github.com/pyenv/pyenv-virtualenv>, and then provided I have a
decent compiler environment, you can install Python from distribution
(though, full disclosure and in all fairness, I've had a few issues with
non-standard directory locations for things like ffi/cffi (IIRC), when
compiling newer Python versions (though I've not checked, recently).

Hope that helps in some way.



On Mon, Aug 9, 2021 at 9:38 AM Friedrich Romstedt via Cygwin <
cygwin AT cygwin DOT com> wrote:

> Hi there,
>
> This is about a small issue I ran into with using virtualenv-20.2.2-1
> (package name python38-virtualenv) with Python 3.8.10 (package
> python38) in Cygwin (64-bit).
>
> After having installed python38-virtualenv (and its automatically
> picked dependencies), using virtualenv by:
>
>     $ python -m virtualenv <folder>
>
> presented me the output attached as file [a02.txt]. "filelock" is a
> Python package, part of the cygwin package database. Having installed
> it, the same command as above yielded [a03.txt] (attached); there was
> no more output. Having treated the package "distlib" mentioned there
> the same way as "filelock", creating a virtual environment now
> succeeds.
>
> I did some googling:
>
>     site:sourceware.org/pipermail/cygwin virtualenv filelock
>
>     virtualenv filelock cygwin
>
> without substantial results; thus posting here.
>
> Judging from [a02.txt], "filelock" is a *direct* dependency of
> "virtualenv".  I do not know if the same holds for "distlib".
>
> Since I feel that this is a pretty obvious result I am skipping the
> "cygcheck -svr" output here.
>
> Best,
> Friedrich
>
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-- 
Russell M. Van Tassell <russellvt AT gmail DOT com>

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