Storage commands failling on Fedora 35 when Python 3.6 is not present

[devnulljason]

Describe the bug

Any az storage commands fail on Fedora 35

Command Name
az storage account list

Errors:

The command failed with an unexpected error. Here is the traceback:
'NoneType' object is not iterable
Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.6/site-packages/knack/cli.py", line 231, in invoke
    cmd_result = self.invocation.execute(args)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 556, in execute
    self.commands_loader.load_arguments(command)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 516, in load_arguments
    loader.load_arguments(command)  # this adds entries to the argument registries
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/__init__.py", line 31, in load_arguments
    load_arguments(self, command)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/_params.py", line 683, in load_arguments
    get_permission_help_string(t_account_permissions)),
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/_validators.py", line 837, in get_permission_help_string
    return ' '.join(['({}){}'.format(x[0], x[1:]) for x in allowed_values])
TypeError: 'NoneType' object is not iterable

To Reproduce:

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

• Start a new container using the Fedora image: docker run -it index.docker.io/library/fedora:35
• Install Azure CLI using instructions in Microsoft documentation
  • rpm --import https://packages.microsoft.com/keys/microsoft.asc
  • dnf install -y https://packages.microsoft.com/config/rhel/8/packages-microsoft-prod.rpm
  • dnf install azure-cli
• Login to an account
  • az login --use-device-code
• az storage account list

Expected Behavior

Available storage accounts in the subscription will be listed, or command will fail gracefully.

Environment Summary

Linux-5.16.19-200.fc35.x86_64-x86_64-with-glibc2.34, Fedora Linux 35 (Container Image)
Python 3.10.2
Installer: RPM

azure-cli 2.36.0

Additional Context

The same command with the same account succeeds when run from a container using mcr.microsoft.com/azure-cli.

[devnulljason]

This error is a blocker to my workflow so I started to roll back through the versions of azure-cli in the rpm repository to try to get it working. The command also failed in 2.35.0 but succeeded in 2.34.1. When I installed 2.34.1 dnf (using the 1.el7 repository instead of 1.el8, since only 2.35 and 2.36 are available in 1.el8) also resolved python3.6 as a dependency, which means it got installed on my system. After python3.6 was installed I ran az upgrade to return to Azure CLI 2.36.0, but the version of Python in use by Azure CLI is still 3.6.15. After returning to Azure CLI 2.36 with Python 3.6, the az storage commands are functioning because Python3.6 is still available for Azure CLI to use.

To summarize:

• Azure CLI <= 2.34.1 has libpython3.6m.so.1.0 listed as a dependency, which installs Python3.6:

# dnf repoquery --requires azure-cli-2.34.1-1.el7
Last metadata expiration check: 0:02:27 ago on Fri Apr 29 18:45:26 2022.
ld-linux-x86-64.so.2()(64bit)
ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
libpython3.6m.so.1.0()(64bit)
python3
rtld(GNU_HASH

• Azure CLI > 2.34.1 does not have the library as a dependency, only python3, so the default installation of Python3.10 is enough to satisfy that requirement:

# dnf repoquery --requires azure-cli-2.35.0-1.el7
Last metadata expiration check: 0:02:41 ago on Fri Apr 29 18:45:26 2022.
ld-linux-x86-64.so.2()(64bit)
ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libpthread.so.0()(64bit)
libpthread.so.0(GLIBC_2.2.5)(64bit)
python3
rtld(GNU_HASH)

• After upgrading from 2.34.1 using az upgrade, Python3.6 is still available:

# az upgrade
...
# az -v
azure-cli                         2.36.0

core                              2.36.0
telemetry                          1.0.6

Dependencies:
msal                              1.17.0
azure-mgmt-resource               20.0.0

Python location '/usr/bin/python3.6'
Extensions directory '/root/.azure/cliextensions'

Python (Linux) 3.6.15 (default, Mar  3 2022, 00:00:00)
[GCC 11.2.1 20220127 (Red Hat 11.2.1-9)]

Legal docs and information: aka.ms/AzureCliLegal


Your CLI is up-to-date.

• az storage commands now succeed on Azure CLI 2.35+

# az storage account list
Please run 'az login' to setup account.

To further confirm, removing python3.6 causes the commands to again fail:

# dnf remove python3.6
...
# az -v
azure-cli                         2.36.0

core                              2.36.0
telemetry                          1.0.6

Dependencies:
msal                              1.17.0
azure-mgmt-resource               20.0.0

Python location '/usr/bin/python3'
Extensions directory '/root/.azure/cliextensions'

Python (Linux) 3.10.2 (main, Jan 17 2022, 00:00:00) [GCC 11.2.1 20211203 (Red Hat 11.2.1-7)]

Legal docs and information: aka.ms/AzureCliLegal


Your CLI is up-to-date.

# az storage account list
The command failed with an unexpected error. Here is the traceback:
'NoneType' object is not iterable
Traceback (most recent call last):
  File "/usr/lib64/az/lib/python3.6/site-packages/knack/cli.py", line 231, in invoke
    cmd_result = self.invocation.execute(args)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 556, in execute
    self.commands_loader.load_arguments(command)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 516, in load_arguments
    loader.load_arguments(command)  # this adds entries to the argument registries
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/__init__.py", line 31, in load_arguments
    load_arguments(self, command)
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/_params.py", line 683, in load_arguments
    get_permission_help_string(t_account_permissions)),
  File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/storage/_validators.py", line 837, in get_permission_help_string
    return ' '.join(['({}){}'.format(x[0], x[1:]) for x in allowed_values])
TypeError: 'NoneType' object is not iterable
To open an issue, please run: 'az feedback'

[yonzhan]

Storage