Article <mailman.14.1722890417.2890.python-list@python.org>

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From: o1bigtenor <o1bigtenor@gmail.com>
Newsgroups: comp.lang.python
Subject: Re: Help needed - - running into issues with python and its tools
Date: Mon, 5 Aug 2024 15:39:37 -0500
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Matt - if you would rather that you were not included in the address list -
-
please advise.

On Mon, Aug 5, 2024 at 8:51=E2=80=AFAM Mats Wichmann <mats@wichmann.us> wro=
te:

> On 8/5/24 06:48, o1bigtenor via Python-list wrote:
> > On Sun, Aug 4, 2024 at 8:49=E2=80=AFAM Mats Wichmann via Python-list <
> > python-list@python.org> wrote:
> >
> >> On 8/3/24 20:03, o1bigtenor via Python-list wrote:
> >>
> >>> My question was, is and will be (and the doc absolutely doesn't cover
> it)
> >>> how do I install a different version in the venv so that python 3.11.=
x
> on
> >>> the
> >>> system is not discombobulated by the python 3.12.x in the venv.
> >>> That python 3.12 would let me run the tools needed.
> >>> (Its the how to install the next version of python that I just haven'=
t
> >> been
> >>> able to find information on - - - and I would be looking for
> information
> >>> on how to install on a *nix.)
> >>
> >> To get a different Python "in" the venv, you use the version you want =
in
> >> the construction of the venv. For example:
> >>
> >>
> >> $ python3.13 -m venv new_venv
> >> $ new_venv/bin/python --version
> >> Python 3.13.0b4
> >> $ source new_venv/bin/activate
> >>
> >>
> >   "https://peps.python.org/pep-0668/ PEP 668, which prevents pip from
> > interacting with the OS installed python. This change has been done in
> red
> > hat and other distros too . . . "
> >
> > similarly your first command produces and error code for the same reaso=
n.
> >
> > Sorry - - - not my policy - - -
>
> What? Yes, the *system* pip should have some restrictions, if it's a
> system mainly managed by a package manager.
>
> Setting up a venv is the *expected* approach to such situations, and
> creating one doesn't cause any problems. You end up with a pip in the
> activated venv that's going to install to a different path (the one in
> the venv), and will not be marked as externally managed, as the package
> manager has no control over that path.
>
> That's the whole point.  What error are you getting?  The venv module is
> not the pip module so restrictions on the system pip have nothing to do
> with it.
>
> set up pyenv
activated a venv
trying to install python3.12 into it

1. download of python3.12 (blahblahblahetc).deb will not install
2. download of python3.12.tar.xz similarly will not install

(venv2) memyself@devuanbigbox:~$ pip install
/home/memyself/Downloads/Python-3.12.4.tar.xz
Processing ./Downloads/Python-3.12.4.tar.xz
ERROR: file:///home/memyself/Downloads/Python-3.12.4.tar.xz does not appear
to be a Python project: neither 'setup.py' nor 'pyproject.toml' found.

seems that I need a different version (installable as it were) of
python3.12
or my approach is all wrong!

Please advise

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