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From: Mats Wichmann <mats@wichmann.us>
Newsgroups: comp.lang.python
Subject: Re: Help needed - - running into issues with python and its tools
Date: Mon, 5 Aug 2024 14:56:13 -0600
Lines: 122
Message-ID: <mailman.16.1722891384.2890.python-list@python.org>
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On 8/5/24 14:39, o1bigtenor wrote:
> Matt - if you would rather that you were not included in the address=20
> list - -
> please advise.
>=20
> On Mon, Aug 5, 2024 at 8:51=E2=80=AFAM Mats Wichmann <mats@wichmann.us=20
> <mailto:mats@wichmann.us>> wrote:
>=20
>     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 <mailto: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 pytho=
n
>     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 yo=
u
>     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
>      >>
>      >>
>      >=C2=A0 =C2=A0"https://peps.python.org/pep-0668/
>     <https://peps.python.org/pep-0668/> PEP 668, which prevents pip fro=
m
>      > 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 sam=
e
>     reason.
>      >
>      > Sorry - - - not my policy - - -
>=20
>     What? Yes, the *system* pip should have some restrictions, if it's =
a
>     system mainly managed by a package manager.
>=20
>     Setting up a venv is the *expected* approach to such situations, an=
d
>     creating one doesn't cause any problems. You end up with a pip in t=
he
>     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 pac=
kage
>     manager has no control over that path.
>=20
>     That's the whole point.=C2=A0 What error are you getting?=C2=A0 The=
 venv
>     module is
>     not the pip module so restrictions on the system pip have nothing t=
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