#26686: django.core.checks.model_checks _check_lazy_references raises TypeError
with NoneType model_key
-------------------------------------+-------------------------------------
Reporter: bretth | Owner: nobody
Type: Bug | Status: new
Component: Core (System | Version: 1.10
checks) |
Severity: Normal | Resolution:
Keywords: | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by bretth):
Attached my throwaway project. model-utils isn't in installed apps (it
doesn't need to be)
pip install django-model-utils (and django 1.10a).
./manage.py makemigrations demoapp
{{{
Traceback (most recent call last):
File "./manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/__init__.py", line 367, in
execute_from_command_line
utility.execute()
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/__init__.py", line 359, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/base.py", line 305, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/base.py", line 353, in execute
self.check()
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/base.py", line 385, in check
include_deployment_checks=include_deployment_checks,
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/management/base.py", line 372, in _run_checks
return checks.run_checks(**kwargs)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/registry.py", line 81, in run_checks
new_errors = check(app_configs=app_configs)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/model_checks.py", line 156, in
check_lazy_references
return _check_lazy_references(apps)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/model_checks.py", line 151, in
_check_lazy_references
)), key=lambda error: error.msg)
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/model_checks.py", line 150, in <genexpr>
for func in apps._pending_operations[model_key]
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/model_checks.py", line 145, in
build_error
return error_fn(model_key, func, args, keywords) if error_fn else None
File "/Users/bretth/projects/_virtualenvs/django-typeerror/lib/python3.5
/site-packages/django/core/checks/model_checks.py", line 117, in
signal_connect_error
'model': '.'.join(model_key or ''),
TypeError: sequence item 0: expected str instance, NoneType found
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/26686#comment:2>
Django <https://code.djangoproject.com/>
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