Azure-cli: az acr login and az feedback not working on Fedora31

[davqu]

[~]$ az acr login
The command failed with an unexpected error. Here is the traceback:

No module named '_cffi_backend'
Traceback (most recent call last):
File "/usr/lib64/az/lib/python3.6/site-packages/knack/cli.py", line 206, in invoke
cmd_result = self.invocation.execute(args)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 528, in execute
self.commands_loader.load_arguments(command)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 299, in load_arguments
self.command_table[command].load_arguments() # this loads the arguments via reflection
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 291, in load_arguments
super(AzCliCommand, self).load_arguments()
File "/usr/lib64/az/lib/python3.6/site-packages/knack/commands.py", line 97, in load_arguments
cmd_args = self.arguments_loader()
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 496, in default_arguments_loader
op = handler or self.get_op_handler(operation, operation_group=kwargs.get('operation_group'))
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 536, in get_op_handler
op = import_module(mod_to_import)
File "/usr/lib64/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1006, in _gcd_import
File "", line 983, in _find_and_load
File "", line 967, in _find_and_load_unlocked
File "", line 677, in _load_unlocked
File "", line 728, in exec_module
File "", line 219, in _call_with_frames_removed
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/acr/custom.py", line 10, in
from ._utils import (
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/acr/_utils.py", line 28, in
from ._archive_utils import upload_source_code, check_remote_source_code
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/acr/_archive_utils.py", line 15, in
from azure.storage.blob import BlockBlobService
File "/usr/lib64/az/lib/python3.6/site-packages/azure/storage/blob/__init__.py", line 6, in
from .appendblobservice import AppendBlobService
File "/usr/lib64/az/lib/python3.6/site-packages/azure/storage/blob/appendblobservice.py", line 30, in
from ._deserialization import (
File "/usr/lib64/az/lib/python3.6/site-packages/azure/storage/blob/_deserialization.py", line 40, in
from ._encryption import _decrypt_blob
File "/usr/lib64/az/lib/python3.6/site-packages/azure/storage/blob/_encryption.py", line 13, in
from cryptography.hazmat.primitives.padding import PKCS7
File "/usr/lib64/az/lib/python3.6/site-packages/cryptography/hazmat/primitives/padding.py", line 13, in
from cryptography.hazmat.bindings._padding import lib
ModuleNotFoundError: No module named '_cffi_backend'

To open an issue, please run: 'az feedback'

[9] az acr login: FAILURE. Ran: 2 mins ago.

Enter the number of the command you would like to create an issue for. Enter q to quit: 9
The command failed with an unexpected error. Here is the traceback:

cannot import name '_psutil_linux' from 'psutil' (/usr/lib64/az/lib/python3.6/site-packages/psutil/__init__.py)
Traceback (most recent call last):
File "/usr/lib64/az/lib/python3.6/site-packages/knack/cli.py", line 206, in invoke
cmd_result = self.invocation.execute(args)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 608, in execute
raise ex
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 666, in _run_jobs_serially
results.append(self._run_job(expanded_arg, cmd_copy))
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 659, in _run_job
six.reraise(sys.exc_info())
File "/usr/lib64/az/lib/python3.6/site-packages/six.py", line 693, in reraise
raise value
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 636, in _run_job
result = cmd_copy(params)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/commands/__init__.py", line 306, in __call__
return self.handler(args, kwargs)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/core/__init__.py", line 493, in default_command_handler
return op(command_args)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/feedback/custom.py", line 769, in handle_feedback
res = _prompt_issue(recent_commands)
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/feedback/custom.py", line 751, in _prompt_issue
prefix, url, original_issue = _build_issue_info_tup(recent_command_list[ans])
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/feedback/custom.py", line 529, in _build_issue_info_tup
format_dict["shell"] = "Shell: {}".format(_get_parent_proc_name())
File "/usr/lib64/az/lib/python3.6/site-packages/azure/cli/command_modules/feedback/custom.py", line 488, in _get_parent_proc_name
import psutil
File "/usr/lib64/az/lib/python3.6/site-packages/psutil/__init__.py", line 95, in
from . import _pslinux as _psplatform
File "/usr/lib64/az/lib/python3.6/site-packages/psutil/_pslinux.py", line 26, in
from . import _psutil_linux as cext
ImportError: cannot import name '_psutil_linux' from 'psutil' (/usr/lib64/az/lib/python3.6/site-packages/psutil/__init__.py)

To open an issue, please run: 'az feedback'

[yugangw-msft]

ModuleNotFoundError: No module named '_cffi_backend'

This is not ACR or feedback related, rather a general platform issue that whether or not CLI works on Fedora31. CC @fengzhou-msft @achandmsft

[yonzhan]

issue triaged.

[fengzhou-msft]

@davqu Please run yum install python3-cffi and retry.

[davqu]

Thank You. Now it runs.