google-cloud-sdk Cask broken

[bgmonroe]

It looks like the google-cloud-sdk (gcloud cli) cask is broken (at least for me). It looks related to issues with Python3.9 changes. The installer dumps the following error:

Error: Failure while executing; `/usr/bin/env PATH=/usr/local/bin:/usr/local/sbin:/usr/local/Homebrew/Library/Homebrew/shims/scm:/usr/bin:/bin:/usr/sbin:/sbin /usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/install.sh --usage-reporting false --bash-completion false --path-update false --rc-path false --quiet` exited with 1. Here's the output:
Welcome to the Google Cloud SDK!
Traceback (most recent call last):
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin/bootstrapping/install.py", line 12, in <module>
    import bootstrapping
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin/bootstrapping/bootstrapping.py", line 32, in <module>
    import setup  # pylint:disable=g-import-not-at-top
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin/bootstrapping/setup.py", line 57, in <module>
    from googlecloudsdk.core.util import platforms
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/lib/googlecloudsdk/__init__.py", line 23, in <module>
    from googlecloudsdk.core.util import importing
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/lib/googlecloudsdk/core/util/importing.py", line 23, in <module>
    import imp
  File "/usr/local/Cellar/python@3.9/3.9.0_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/imp.py", line 23, in <module>
    from importlib import util
  File "/usr/local/Cellar/python@3.9/3.9.0_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/util.py", line 2, in <module>
    from . import abc
  File "/usr/local/Cellar/python@3.9/3.9.0_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/importlib/abc.py", line 17, in <module>
    from typing import Protocol, runtime_checkable
  File "/usr/local/Cellar/python@3.9/3.9.0_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/typing.py", line 26, in <module>
    import re as stdlib_re  # Avoid confusion with the re we export.
  File "/usr/local/Cellar/python@3.9/3.9.0_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9/re.py", line 124, in <module>
    import enum
  File "/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/lib/third_party/enum/__init__.py", line 26, in <module>
    spec = importlib.util.find_spec('enum')
AttributeError: module 'importlib' has no attribute 'util'

Anyway, I figured I'd post on the off chance the Cask maintainer sees this or other run into this. I tried setting CLOUDSDK_PYTHON=python without success so I assume the installer doesn't care about the CLOUDSDK_PYTHON var.

[SMillerDev]

There's nothing in the cask code that's related to python so this is an issue in the cloud SDK itself

[jzer7]

@bgmonroe I noticed this is due to the Python@3.9. To get it to work, you can use Python@3.8.

[bgmonroe]

Thanks @SMillerDev and @jzer7. I figured it was Python 3.9 related.

[miccal]

There is a discussion about this in Homebrew/homebrew-cask#91744.