Debian Bug report logs - #1030335
python3-pip: PEP 668 support breaks --user/--editable

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: FC Stegerman <flx@obfusk.net>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: python3-pip: PEP 668 support breaks --user/--editable

Date: Fri, 03 Feb 2023 06:33:06 +0100

Package: python3-pip
Version: 23.0+dfsg-1
Severity: important
X-Debbugs-Cc: flx@obfusk.net

Hi!

I just updated python3-pip and was greeted with a NEWS message about
PEP 668 support:

  This version of pip introduces PEP 668 support. Debian's python3.11
  interpreter will soon (>= 3.11.1-3) declare the installation to be
  EXTERNALLY-MANAGED, instructing pip to disallow package installation outside
  virtualenvs.
  
  See: https://peps.python.org/pep-0668/
  
  Practically, this means that you can't use pip to install packages outside a
  virtualenv, on a Debian system, any more.
  
  See /usr/share/doc/python3.11/README.venv for more details.
  If that isn't available yet, check:
  https://salsa.debian.org/cpython-team/python3/-/blob/master/debian/README.venv

Not being able to install packages system-wide seems like a good idea,
I fully support that.

But I often install the Python packages I'm developing under my own
user account with "pip install -e", which is also made impossible by
this change.

And I intentionally do not use virtualenvs for this because I want to
have all dependencies provided by Debian packages, not downloaded from
PyPI.

And as far as I can tell there is not even an option I can give to pip
to tell it to allow me to install to ~/.local anyway.  PEP 668
mentions a --break-system-packages (as an example), but such an option
doesn't seem to actually exist.

- FC

Message #10 received at 1030335-submitter@bugs.debian.org (full text, mbox, reply):

From: Stefano Rivera <stefanor@debian.org>

To: 1030335-submitter@bugs.debian.org

Subject: Bug#1030335 marked as pending in python-pip

Date: Sun, 05 Feb 2023 17:03:54 +0000

Control: tag -1 pending

Hello,

Bug #1030335 in python-pip reported by you has been fixed in the
Git repository and is awaiting an upload. You can see the commit
message below and you can check the diff of the fix at:

https://salsa.debian.org/python-team/packages/python-pip/-/commit/68673ebd85db676cded1fc8a8f34f46bfc4e14d4

------------------------------------------------------------------------
Patch: Implement ``--break-system-packages`` to permit installing packages into EXTERNALLY-MANAGED Python installations. (Closes: #1030335)
------------------------------------------------------------------------

(this message was generated automatically)
-- 
Greetings

https://bugs.debian.org/1030335

Message #17 received at 1030335-close@bugs.debian.org (full text, mbox, reply):

From: Debian FTP Masters <ftpmaster@ftp-master.debian.org>

To: 1030335-close@bugs.debian.org

Subject: Bug#1030335: fixed in python-pip 23.0+dfsg-2

Date: Sun, 05 Feb 2023 22:24:12 +0000

Source: python-pip
Source-Version: 23.0+dfsg-2
Done: Stefano Rivera <stefanor@debian.org>

We believe that the bug you reported is fixed in the latest version of
python-pip, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1030335@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Stefano Rivera <stefanor@debian.org> (supplier of updated python-pip package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Sun, 05 Feb 2023 18:07:04 -0400
Source: python-pip
Architecture: source
Version: 23.0+dfsg-2
Distribution: unstable
Urgency: medium
Maintainer: Debian Python Team <team+python@tracker.debian.org>
Changed-By: Stefano Rivera <stefanor@debian.org>
Closes: 1030335
Changes:
 python-pip (23.0+dfsg-2) unstable; urgency=medium
 .
   * Patch: Implement ``--break-system-packages`` to permit installing packages
     into EXTERNALLY-MANAGED Python installations. (Closes: #1030335)
   * Use --break-system-packages in our autopkgtests.
   * Bump the NEWS entry, to document --break-system-packages.
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