[Bug]: SyntaxWarning: invalid escape sequence '\d' on Salt: 3006.16 with salt/ext/tornado/util.py

[stiwari603]

What happened?

Hi Team,

Below compilation error is happening on salt 3006.10 version if we used python 3.12

python/lib/python3.12/site-packages/salt/ext/tornado/util.py:246: SyntaxWarning: invalid escape sequence '\d' """Unescape a string escaped by re.escape.

As per analysis below code block is causing issue

def re_unescape(s): # type: (str) -> str """Unescape a string escaped by re.escape`.

May raise ``ValueError`` for regular expressions which could not
have been produced by `re.escape` (for example, strings containing
``\d`` cannot be unescaped).

.. versionadded:: 4.4
"""
return _re_unescape_pattern.sub(_re_unescape_replacement, s)`

Type of salt install

Official deb

Major version

3006.x

What supported OS are you seeing the problem on? Can select multiple. (If bug appears on an unsupported OS, please open a GitHub Discussion instead)

ubuntu-24.04

salt --versions-report output

`Salt Version:
          Salt: 3006.16
 
Python Version:
        Python: 3.10.18 (main, Sep  5 2025, 22:48:51) [GCC 11.2.0]
 
Dependency Versions:
          cffi: 1.14.6
      cherrypy: 18.10.0
  cryptography: 42.0.5
      dateutil: 2.8.1
     docker-py: Not Installed
         gitdb: Not Installed
     gitpython: Not Installed
        Jinja2: 3.1.6
       libgit2: Not Installed
  looseversion: 1.0.2
      M2Crypto: Not Installed
          Mako: Not Installed
       msgpack: 1.0.2
  msgpack-pure: Not Installed
  mysql-python: Not Installed
     packaging: 24.0
     pycparser: 2.21
      pycrypto: Not Installed
  pycryptodome: 3.19.1
        pygit2: Not Installed
  python-gnupg: 0.4.8
        PyYAML: 6.0.1
         PyZMQ: 23.2.0
        relenv: 0.20.6
         smmap: Not Installed
       timelib: 0.3.0
       Tornado: 4.5.3
           ZMQ: 4.3.4
 
System Versions:
          dist: ubuntu 24.04.3 noble
        locale: utf-8
       machine: x86_64
       release: 6.14.0-33-generic
        system: Linux
       version: Ubuntu 24.04.3 noble
`

[welcome]

Hi there! Welcome to the Salt Community! Thank you for making your first contribution. We have a lengthy process for issues and PRs. Someone from the Core Team will follow up as soon as possible. In the meantime, here's some information that may help as you continue your Salt journey.
Please be sure to review our Code of Conduct. Also, check out some of our community resources including:

• Salt's Contributor Guide
• Join our Community Discord
• Salt Project YouTube channel
• GitHub Discussions

There are lots of ways to get involved in our community. Every month, there are around a dozen opportunities to meet with other contributors and the Salt Core team and collaborate in real time. The best way to keep track is by subscribing to the Salt Community Events Calendar.
If you have additional questions, email us at saltproject.pdl@broadcom.com. We're glad you've joined our community and look forward to doing awesome things with you!