dh-python: Cannot exclude deliberately embedded .egg-info from the clean step

[Simon Chopin]

Imported from Debian bug http://bugs.debian.org/1051837:

Source: dh-python
Version: 6.20230825
Severity: normal
X-Debbugs-Cc: <email address hidden>

We have a FTBFS on src:pastescript because its test suite embeds a
FakePlugin Python package, including its .egg-info, and the recent
change to the dh-python clean: target breaks that package.

While we can work around it by temporarily renaming the problematic
directory before the dh_clean call, it would be nicer to have an
explicit mechanism to exclude some paths from the clean analysis.

-- System Information:
Debian Release: bookworm/sid
  APT prefers lunar-updates
  APT policy: (500, 'lunar-updates'), (500, 'lunar-security'), (500, 'lunar'), (100, 'lunar-proposed'), (100, 'lunar-backports')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.2.0-32-generic (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_USER, TAINT_OOT_MODULE
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- no debconf information

[Launchpad Janitor (janitor)]

This bug was fixed in the package pastescript - 3.2.1-1ubuntu1

---------------
pastescript (3.2.1-1ubuntu1) mantic; urgency=medium

  * d/rules: work around the (wrong) removal of FakePlugin.egg-info by
    dh-python in the clean step (LP: #2035337)

 -- Simon Chopin <email address hidden> Wed, 13 Sep 2023 12:18:46 +0200

[Launchpad Janitor (janitor)]

This bug was fixed in the package pastedeploy - 3.0.1-5ubuntu1

---------------
pastedeploy (3.0.1-5ubuntu1) mantic; urgency=medium

  * Fix FTBFS due to dh-python being overly enthusiastic in its cleaning
    duties (LP: #2035337)

 -- Simon Chopin <email address hidden> Thu, 21 Sep 2023 22:21:37 +0200