I am having an odd interment problem. I have an app which is deployed
at 30 different sites. At one site only, and only intermittently, user
will get the error 'No module named context_processors'.
It may happen on a page that was previously accessed with no error and
upon refreshing the same page it will come up fine. It will not occur
for months, then happen a few times in one day.
The app is deployed with nginx and uwsgi.
Here is a typical traceback:
Internal Server Error: /
Traceback (most recent call last):
File
"/usr/local/lib/python3.5/dist-packages/django/core/handlers/exception.py",
line 35, in inner
response = get_response(request)
File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py",
line 158, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py",
line 156, in _get_response
response = response.render()
File "/usr/local/lib/python3.5/dist-packages/django/template/response.py",
line 106, in render
self.content = self.rendered_content
File "/usr/local/lib/python3.5/dist-packages/django/template/response.py",
line 83, in rendered_content
content = template.render(context, self._request)
File
"/usr/local/lib/python3.5/dist-packages/django/template/backends/django.py",
line 61, in render
return self.template.render(context)
File "/usr/local/lib/python3.5/dist-packages/django/template/base.py",
line 173, in render
with context.bind_template(self):
File "/usr/lib/python3.5/contextlib.py", line 59, in __enter__
return next(self.gen)
File "/usr/local/lib/python3.5/dist-packages/django/template/context.py",
line 246, in bind_template
processors = (template.engine.template_context_processors +
File "/usr/local/lib/python3.5/dist-packages/django/utils/functional.py",
line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.5/dist-packages/django/template/engine.py",
line 85, in template_context_processors
return tuple(import_string(path) for path in context_processors)
File "/usr/local/lib/python3.5/dist-packages/django/template/engine.py",
line 85, in <genexpr>
return tuple(import_string(path) for path in context_processors)
File "/usr/local/lib/python3.5/dist-packages/django/utils/module_loading.py",
line 17, in import_string
module = import_module(module_path)
File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 956, in _find_and_load_unlocked
ImportError: No module named 'ui.context_processors'
That file does exist and is readable:
-rw-rw-r-- 1 ubuntu ubuntu 1059 May 2 2018 ui/context_processors.py
And here is my TEMPLATES setting:
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [
os.path.join(BASE_DIR, 'ui/templates'),
os.path.join(BASE_DIR, 'app/dse/templates'),
os.path.join(BASE_DIR, 'core/reports/templates'),
],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
'context_processors.config',
'ui.context_processors.navigation',
'core.appmngr.context_processor',
],
},
},
]
As I said it's intermittent. Anyone have any ideas on what it could be
and/or how to debug it?
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