Invalid python escape sequence in azure resource graph extension

[bb-froggy]

Describe the bug

In python, spaces need no escaping, but I've heard that only newer versions of python complain if you do it anyway, i.e. use '\ ' in a string. _models_py3.py of the resource graph extension seems to contain such escape sequences, though: In line 58, 62, 1201, and 1205. Some az commands now print a warning because of this in my environment, although that hasn't happened in the past and I cannot reproduce it in all environments. I assume it depends on the python version used.

Related command

az graph

Errors

This is the output on my machine:

PS D:\git\scepman-psmodule\SCEPman> az graph query
time specifying the date and time for the inclusive start and exclusive end, i.e. [start, end).
C:\Users\ChristophHannebauer.azure\cliextensions\resource-graph\azext_resourcegraph\vendored_sdks\resourcegraph\models_models_py3.py:1196: SyntaxWarning: invalid escape sequence '\ '
"""Specifies the date and time interval for a changes request.
the following arguments are required: _subcommand

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Read more about the command in reference docs

Issue script & Debug output

PS D:\git\scepman-psmodule\SCEPman> az graph --debug
cli.knack.cli: Command arguments: ['graph', '--debug']
cli.knack.cli: __init__ debug log:
Enable color in terminal.
cli.knack.cli: Event: Cli.PreExecute []
cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [<function CLILogging.on_global_arguments at 0x00000150686CF420>, <function OutputProducer.on_global_arguments at 0x0000015068A6C180>, <function CLIQuery.on_global_arguments at 0x0000015068A91580>]
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate []
cli.azure.cli.core: Modules found from index for 'graph': ['azext_resourcegraph']
cli.azure.cli.core: Loading command modules:
cli.azure.cli.core: Name                  Load Time    Groups  Commands
cli.azure.cli.core: Total (0)                 0.000         0         0
cli.azure.cli.core: These extensions are not installed and will be skipped: ['azext_ai_examples', 'azext_next']
cli.azure.cli.core: Loading extensions:
cli.azure.cli.core: Name                  Load Time    Groups  Commands  Directory
cli.azure.cli.core: resource-graph            0.004         2         5  C:\Users\ChristophHannebauer\.azure\cliextensions\resource-graph
cli.azure.cli.core: Total (1)                 0.004         2         5  
cli.azure.cli.core: Loaded 2 groups, 5 commands.
cli.azure.cli.core: Found a match in the command group table for 'graph'.
cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [<function AzCliLogging.init_command_file_logging at 0x000001506AD51DA0>]
cli.azure.cli.core.azlogging: metadata file logging enabled - writing logs to 'C:\Users\ChristophHannebauer\.azure\commands\2024-12-13.14-11-57.graph.11056.log'.
az_command_data_logger: command args: graph --debug
cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [<function register_global_subscription_argument.<locals>.add_subscription_parameter at 0x000001506ADB9800>]
cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad []
cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [<function register_ids_argument.<locals>.add_ids_arguments at 0x000001506ADB98A0>, <function register_cache_arguments.<locals>.add_cache_arguments at 0x000001506ADB99E0>, <function register_upcoming_breaking_change_info.<locals>.update_breaking_change_info at 0x000001506ADB9A80>]
cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded []
cli.knack.cli: Event: CommandInvoker.OnPreParseArgs []
C:\Users\ChristophHannebauer\.azure\cliextensions\resource-graph\azext_resourcegraph\vendored_sdks\resourcegraph\models\_models_py3.py:53: SyntaxWarning: invalid escape sequence '\ '
  """An interval in time specifying the date and time for the inclusive start and exclusive end, i.e. ``[start, end)``.
C:\Users\ChristophHannebauer\.azure\cliextensions\resource-graph\azext_resourcegraph\vendored_sdks\resourcegraph\models\_models_py3.py:1196: SyntaxWarning: invalid escape sequence '\ '   
  """Specifies the date and time interval for a changes request.
urllib3.connectionpool: Starting new HTTPS connection (1): app.aladdin.microsoft.com:443
urllib3.connectionpool: https://app.aladdin.microsoft.com:443 "GET /api/v1.0/suggestions?query=%7B%22command%22%3A+%22graph%22%2C+%22parameters%22%3A+%22%22%7D&clientType=AzureCli&context=%7B%22versionNumber%22%3A+%222.67.0%22%2C+%22errorType%22%3A+%22MissingRequiredSubcommand%22%2C+%22correlationId%22%3A+%22cdc9d4af-640a-424f-8915-4105e2de1ba8%22%2C+%22subscriptionId%22%3A+%22627684de-d5d0-4a61-8fdb-fbcc37f8db7b%22%2C+%22eventId%22%3A+%22e5291b07-b59d-4196-a5cd-9ca9ef7cee63%22%7D HTTP/1.1" 200 None
cli.azure.cli.core.azclierror: Traceback (most recent call last):
  File "argparse.py", line 1931, in parse_known_args
  File "argparse.py", line 2196, in _parse_known_args
argparse.ArgumentError: the following arguments are required: _subcommand

cli.azure.cli.core.azclierror: the following arguments are required: _subcommand
az_command_data_logger: the following arguments are required: _subcommand

Examples from AI knowledge base:
https://aka.ms/cli_ref
Read more about the command in reference docs
cli.knack.cli: Event: Cli.PostExecute [<function AzCliLogging.deinit_cmd_metadata_logging at 0x000001506AD52020>]
az_command_data_logger: exit code: 2
cli.__main__: Command ran in 0.929 seconds (init: 0.284, invoke: 0.644)
telemetry.main: Begin splitting cli events and extra events, total events: 1
telemetry.client: Accumulated 0 events. Flush the clients.
telemetry.main: Finish splitting cli events and extra events, cli events: 1
telemetry.save: Save telemetry record of length 3824 in cache file under C:\Users\ChristophHannebauer\.azure\telemetry\20241213141157786
telemetry.main: Begin creating telemetry upload process.
telemetry.process: Creating upload process: "C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe C:\Program Files\Microsoft SDKs\Azure\CLI2\Lib\site-packages\azure\cli\telemetry\__init__.pyc C:\Users\ChristophHannebauer\.azure C:\Users\ChristophHannebauer\.azure\telemetry\20241213141157786"
telemetry.process: Return from creating process 43816
telemetry.main: Finish creating telemetry upload process.

Expected behavior

There should be no warning about the invalid escape sequence.

Environment Summary

azure-cli 2.67.0

core 2.67.0
telemetry 1.1.0

Extensions:
resource-graph 2.1.0

Dependencies:
msal 1.31.0
azure-mgmt-resource 23.1.1

Python location 'C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe'
Extensions directory 'C:\Users\ChristophHannebauer.azure\cliextensions'

Python (Windows) 3.12.7 (tags/v3.12.7:0b05ead, Oct 1 2024, 03:06:41) [MSC v.1941 64 bit (AMD64)]

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Your CLI is up-to-date.

Additional context

The code is auto-generated by autorest, so probably, there is an upstream issue in autorest

[yonzhan]

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

[microsoft-github-policy-service]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @venu-l.