id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
35085	Import of PyATS breaks runserver reloader	Andy Norwood	nobody	"When importing from the pyats library the development server fails to start with the following error. A more complete description of the issue in listed here https://github.com/CiscoTestAutomation/pyats/issues/120#issuecomment-892857620 

{{{
Django version 4.2.8, using settings 'config.settings.local'
Development server is running at http://0.0.0.0:8000/
Using the Werkzeug debugger (https://werkzeug.palletsprojects.com/)
Quit the server with CONTROL-C.
Traceback (most recent call last):
  File ""/app/manage.py"", line 31, in <module>
    execute_from_command_line(sys.argv)
  File ""/usr/local/lib/python3.11/site-packages/django/core/management/__init__.py"", line 442, in execute_from_command_line
    utility.execute()
  File ""/usr/local/lib/python3.11/site-packages/django/core/management/__init__.py"", line 436, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File ""/usr/local/lib/python3.11/site-packages/django/core/management/base.py"", line 412, in run_from_argv
    self.execute(*args, **cmd_options)
  File ""/usr/local/lib/python3.11/site-packages/django/core/management/base.py"", line 458, in execute
    output = self.handle(*args, **options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/usr/local/lib/python3.11/site-packages/django_extensions/management/utils.py"", line 62, in inner
    ret = func(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/usr/local/lib/python3.11/site-packages/django_extensions/management/commands/runserver_plus.py"", line 338, in handle
    self.inner_run(options)
  File ""/usr/local/lib/python3.11/site-packages/django_extensions/management/commands/runserver_plus.py"", line 438, in inner_run
    self.extra_files |= set(filter(lambda filename: str(filename).endswith('.mo'), gen_filenames()))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/usr/local/lib/python3.11/site-packages/django/utils/autoreload.py"", line 304, in watched_files
    yield from iter_all_python_module_files()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/usr/local/lib/python3.11/site-packages/django/utils/autoreload.py"", line 120, in iter_all_python_module_files
    return iter_modules_and_files(modules, frozenset(_error_files))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: unhashable type: 'Configuration'
}}}

I have used the python manage.py shell to test the import and do not get an error after import
{{{
Python 3.11.7 (main, Dec 19 2023, 03:30:20) [GCC 12.2.0]
Type 'copyright', 'credits' or 'license' for more information
IPython 8.19.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: from pyats.topology import Testbed, Device

In [2]: 

}}}

As an aside, I found a similar issue reported but with the Netmiko library instead https://github.com/ktbyers/netmiko/issues/1955

I don't think this has been reported previously. I have limited Python skills but happy to assist where I can.
"	Bug	closed	Utilities	4.2	Normal	invalid			Unreviewed	0	0	0	0	0	0