Exception when using with flake8 v6.0.0

[shai-bennathan]

Running 'flake8 --version' from command line.
When [flake8-import-order==1.18.1] + [flake8==6.0.0] is installed, the below exception is thrown.
When [flake8-import-order==1.18.1] + [flake8==5.0.4] is installed, the command succeeds.
When [flake8-import-order] is uninstalled, and [flake8==6.0.0] is installed, the command succeeds.

Other plugins are installed in all the above cases:
flake8-blind-except==0.2.1
flake8-builtins==2.0.1
flake8-docstrings==1.6.0
flake8-rst-docstrings==0.3.0
flake8-logging-format==0.9.0

With [flake8==6.0.0] installed, the issue reproduces for all flake8-import-order versions attempted:
1.18, 1.17, 1.15, 1.10

Environments:

• Win11 22H2, Python3.10.7, PowerShell.
• WinServer2019, Python 3.11, PowerShell.

Exception log:
(venv) PS C:\source\ait\pypekan> flake8 --version
Traceback (most recent call last):
File "C:\Users\shaib\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 196, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\shaib\AppData\Local\Programs\Python\Python310\lib\runpy.py", line 86, in run_code
exec(code, run_globals)
File "C:\source\ait\pypekan\venv\Scripts\flake8.exe_main.py", line 7, in
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\main\cli.py", line 23, in main
app.run(argv)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\main\application.py", line 198, in run
self._run(argv)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\main\application.py", line 186, in _run
self.initialize(argv)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\main\application.py", line 165, in initialize
self.plugins, self.options = parse_args(argv)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\options\parse_args.py", line 51, in parse_args
option_manager.register_plugins(plugins)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\options\manager.py", line 259, in register_plugins
add_options(self)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8_import_order\flake8_linter.py", line 43, in add_options
register_opt(
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8_import_order\flake8_linter.py", line 90, in register_opt
parser.add_option(*args, **kwargs)
File "C:\source\ait\pypekan\venv\lib\site-packages\flake8\options\manager.py", line 281, in add_option
self._current_group.add_argument(*option_args, **option_kwargs)
File "C:\Users\shaib\AppData\Local\Programs\Python\Python310\lib\argparse.py", line 1428, in add_argument
raise ValueError('%r is not callable' % (type_func,))
ValueError: 'string' is not callable

[shai-bennathan]

Duplicate of: #189

[sigmavirus24]

Fix released @shai-bennathan