az vm list crash: 'Namespace' object has no attribute '_cmd'

[jakobbg]

Command Name
az vm list

Errors:

The command failed with an unexpected error. Here is the traceback:
'Namespace' object has no attribute '_cmd'
Traceback (most recent call last):
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/knack/cli.py", line 231, in invoke
    cmd_result = self.invocation.execute(args)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/azure/cli/core/commands/__init__.py", line 582, in execute
    parsed_args = self.parser.parse_args(args)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/knack/parser.py", line 260, in parse_args
    return super().parse_args(args)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1822, in parse_args
    args, argv = self.parse_known_args(args, namespace)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/azure/cli/core/parser.py", line 284, in parse_known_args
    self._namespace, self._raw_arguments = super().parse_known_args(args=args, namespace=namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1850, in parse_known_args
    namespace, args = self._parse_known_args(args, namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2046, in _parse_known_args
    positionals_end_index = consume_positionals(start_index)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2023, in consume_positionals
    take_action(action, args)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1932, in take_action
    action(self, namespace, argument_values, option_string)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1210, in __call__
    subnamespace, arg_strings = parser.parse_known_args(arg_strings, None)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/azure/cli/core/parser.py", line 284, in parse_known_args
    self._namespace, self._raw_arguments = super().parse_known_args(args=args, namespace=namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1850, in parse_known_args
    namespace, args = self._parse_known_args(args, namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2046, in _parse_known_args
    positionals_end_index = consume_positionals(start_index)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2023, in consume_positionals
    take_action(action, args)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1932, in take_action
    action(self, namespace, argument_values, option_string)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1210, in __call__
    subnamespace, arg_strings = parser.parse_known_args(arg_strings, None)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/azure/cli/core/parser.py", line 284, in parse_known_args
    self._namespace, self._raw_arguments = super().parse_known_args(args=args, namespace=namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1850, in parse_known_args
    namespace, args = self._parse_known_args(args, namespace)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2064, in _parse_known_args
    start_index = consume_optional(start_index)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 2004, in consume_optional
    take_action(action, args, option_string)
  File "/opt/homebrew/Cellar/python@3.9/3.9.8/Frameworks/Python.framework/Versions/3.9/lib/python3.9/argparse.py", line 1932, in take_action
    action(self, namespace, argument_values, option_string)
  File "/opt/homebrew/Cellar/azure-cli/2.30.0/libexec/lib/python3.9/site-packages/azure/cli/core/commands/arm.py", line 357, in __call__
    profile = Profile(cli_ctx=namespace._cmd.cli_ctx)  # pylint: disable=protected-access
AttributeError: 'Namespace' object has no attribute '_cmd'

To Reproduce:

Steps to reproduce the behavior. Note that argument values have been redacted, as they may contain sensitive information.

• Put any pre-requisite steps here...
• az vm list -g {} --subscription={}

Expected Behavior

Environment Summary

macOS-12.0.1-arm64-arm-64bit, Darwin 21.1.0
Python 3.9.8
Installer: HOMEBREW

azure-cli 2.30.0

Additional Context

[yonzhan]

Compute

[jiasli]

This issue is caused by a regression in Python 3.9.8. Let's work on #20269.

[jakobbg]

Confirmed to be resolved in homebrew-version 2.30.0_1.

~ brew info azure-cli
azure-cli: stable 2.30.0 (bottled), HEAD
Microsoft Azure CLI 2.0
https://docs.microsoft.com/cli/azure/overview
/opt/homebrew/Cellar/azure-cli/2.30.0_1 (21,310 files, 462.3MB) *
  Poured from bottle on 2021-11-15 at 22:33:21
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/azure-cli.rb
License: MIT
==> Dependencies
Required: openssl@1.1 ✔, python@3.10 ✔
==> Options
--HEAD
	Install HEAD version
==> Analytics
install: 55,467 (30 days), 146,824 (90 days), 467,626 (365 days)
install-on-request: 55,315 (30 days), 146,402 (90 days), 465,609 (365 days)
build-error: 123 (30 days)