#30215: `AttributeError: __spec__` on `./manage.py runserver` -------------------------------------+------------------------------------- Reporter: flaviut | Owner: nobody Type: Bug | Status: new Component: Core | Version: 2.2 (Management commands) | Severity: Normal | Keywords: Triage Stage: | Has patch: 1 Unreviewed | Needs documentation: 0 | Needs tests: 0 Patch needs improvement: 0 | Easy pickings: 1 UI/UX: 0 | -------------------------------------+------------------------------------- I get a `AttributeError: __spec__` when I try using the live server. Here's the full stack trace:
{{{ $ pipenv run ./manage.py runserver Watchman unavailable: pywatchman not installed. Watching for file changes with StatReloader Performing system checks… Traceback (most recent call last): File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/py/_vendored_packages/apipkg.py", line 141, in __makeattr modpath, attrname = self.__map__[name] KeyError: '__spec__' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/user/dev/inventory/manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/__init__.py", line 381, in execute_from_command_line utility.execute() File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/__init__.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/base.py", line 323, in run_from_argv self.execute(*args, **cmd_options) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/commands/runserver.py", line 60, in execute super().execute(*args, **options) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/base.py", line 364, in execute output = self.handle(*args, **options) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/commands/runserver.py", line 95, in handle self.run(**options) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/core/management/commands/runserver.py", line 102, in run autoreload.run_with_reloader(self.inner_run, **options) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 579, in run_with_reloader start_django(reloader, main_func, *args, **kwargs) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 564, in start_django reloader.run(django_main_thread) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 275, in run self.run_loop() File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 281, in run_loop next(ticker) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 321, in tick state.update(self.loop_files(state, previous_timestamp)) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 328, in loop_files for path, mtime in self.snapshot_files(): File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 348, in snapshot_files for file in self.watched_files(): File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 241, in watched_files yield from iter_all_python_module_files() File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 103, in iter_all_python_module_files return iter_modules_and_files(modules, frozenset(_error_files)) File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/django/utils/autoreload.py", line 114, in iter_modules_and_files if not isinstance(module, ModuleType) or module.__spec__ is None: File "/home/user/etc/.virtualenvs/inventory-HrJj1m_g/lib/python3.7/site- packages/py/_vendored_packages/apipkg.py", line 146, in __makeattr raise AttributeError(name) AttributeError: __spec__ }}} The fix is really simple: in {{{django/utils/autoreload.py}}}, line 114, put {{{or not hasattr(module, '__spec__')}}} before {{{or module.__spec__ is None:}}} -- Ticket URL: <https://code.djangoproject.com/ticket/30215> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/050.31e282a32a73581915d6e0f1d07b5dc1%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.