Syntax warnings with brand new Azure CLI on macOS installed via brew

[joelparkerhenderson]

Describe the bug

I'm trying Azure CLI for the first time today, and hitting the errors on macOS with az-cli installation via brew.

Related command

az --version
azure-cli                         2.70.0

core                              2.70.0
telemetry                          1.1.0

Dependencies:
msal                            1.31.2b1
azure-mgmt-resource               23.1.1

Python location '/opt/homebrew/Cellar/azure-cli/2.70.0/libexec/bin/python'
Config directory '/Users/jph/.azure'
Extensions directory '/Users/jph/.azure/cliextensions'

Python (Darwin) 3.12.9 (main, Feb  4 2025, 14:38:38) [Clang 16.0.0 (clang-1600.0.26.6)]

Legal docs and information: aka.ms/AzureCliLegal


Your CLI is up-to-date.
/opt/homebrew/Cellar/azure-cli/2.70.0/libexec/lib/python3.12/site-packages/deviceid/deviceid.py:9: SyntaxWarning: invalid escape sequence '\S'
  """
/opt/homebrew/Cellar/azure-cli/2.70.0/libexec/lib/python3.12/site-packages/deviceid/_store.py:6: SyntaxWarning: invalid escape sequence '\M'
  REGISTRY_PATH = 'SOFTWARE\Microsoft\DeveloperTools'

Errors

/opt/homebrew/Cellar/azure-cli/2.70.0/libexec/lib/python3.12/site-packages/deviceid/deviceid.py:9: SyntaxWarning: invalid escape sequence '\S'
  """
/opt/homebrew/Cellar/azure-cli/2.70.0/libexec/lib/python3.12/site-packages/deviceid/_store.py:6: SyntaxWarning: invalid escape sequence '\M'
  REGISTRY_PATH = 'SOFTWARE\Microsoft\DeveloperTools'

Issue script & Debug output

NA

Expected behavior

NA

Environment Summary

NA

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[github-actions]

Here are some similar issues that might help you. Please check if they can solve your problem.

• SyntaxWarning: invalid escape sequence '\ ' warning in azure SDK #30440

---

Possible solution (Extracted from existing issue, might be incorrect; please verify carefully)

Please report this to Azure/azure-sdk-for-python#38618

Reference:

• SyntaxWarning: invalid escape sequence '\ ' warning in azure SDK #30440 (comment)

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[bebound]

@evelyn-ys for awareness. deviceid produces this warning.

For the explanation of the warning, see #28829 (comment)

Similar issue: #30440 #28829

[evelyn-ys]

I've reported to py-deviceid: microsoft/py-deviceid#10.

Once there's a fix release, CLI will pick it up ASAP

[joelparkerhenderson]

Do I understand correctly that the problem is due to python deprecation warnings, and also that the Azure CLI is showing the warnings because of its dependency on the python toolchain?

If yes, then where do developers see any kind of Microsoft roadmap for trying an alternative language, such as C# or Rust?