#25158: InvalidTemplateLibrary when using django_extensions
---------------------------------+--------------------
Reporter: jaddison | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: master
Severity: Release blocker | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
---------------------------------+--------------------
Trying to use django_extensions version 1.5.5 with Django master branch
gives this traceback:
{{{
Environment:
Request Method: GET
Request URL: http://localhost:8000/
Django Version: 1.9.dev20150721153804
Python Version: 3.4.3
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django_extensions']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/utils.py"
in __getitem__
86. return self._engines[alias]
During handling of the above exception ('django'), another exception
occurred:
File "/Users/jaddison/.virtualenvs/django19test/lib/python3.4/site-
packages/django_extensions/templatetags/highlighting.py" in <module>
41. from pygments import highlight as pyghighlight
During handling of the above exception (No module named 'pygments'),
another exception occurred:
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/backends/django.py"
in get_package_libraries
144. module = import_module(entry[1])
File
"/Users/jaddison/.virtualenvs/django19test/lib/python3.4/importlib/__init__.py"
in import_module
109. return _bootstrap._gcd_import(name[level:], package, level)
File "/Users/jaddison/.virtualenvs/django19test/lib/python3.4/site-
packages/django_extensions/templatetags/highlighting.py" in <module>
45. raise ImportError("Please install 'pygments' library to use
highlighting.")
During handling of the above exception (Please install 'pygments' library
to use highlighting.), another exception occurred:
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/core/handlers/base.py"
in get_response
147. response = wrapped_callback(request,
*callback_args, **callback_kwargs)
File "/Users/jaddison/projects/django19test/testviews/views.py" in
testview
5. return render(request, template)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/shortcuts.py"
in render
67. template_name, context, request=request, using=using)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/loader.py"
in render_to_string
91. template = get_template(template_name, using=using)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/loader.py"
in get_template
21. engines = _engine_list(using)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/loader.py"
in _engine_list
139. return engines.all() if using is None else [engines[using]]
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/utils.py"
in all
110. return [self[alias] for alias in self]
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/utils.py"
in <listcomp>
110. return [self[alias] for alias in self]
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/utils.py"
in __getitem__
101. engine = engine_cls(params)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/backends/django.py"
in __init__
31. options['libraries'] =
self.get_templatetag_libraries(libraries)
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/backends/django.py"
in get_templatetag_libraries
49. libraries = get_installed_libraries()
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/backends/django.py"
in get_installed_libraries
131. for name in get_package_libraries(pkg):
File
"/Users/jaddison/.virtualenvs/django19test/src/django/django/template/backends/django.py"
in get_package_libraries
148. "trying to load '%s': %s" % (entry[1], e)
Exception Type: InvalidTemplateLibrary at /
Exception Value: Invalid template library specified. ImportError raised
when trying to load 'django_extensions.templatetags.highlighting': Please
install 'pygments' library to use highlighting.
}}}
I'm not positive, but it looks like it will always blow up when a template
tag 'library' is encountered that has missing Python dependencies - even
if you don't use that library.
--
Ticket URL: <https://code.djangoproject.com/ticket/25158>
Django <https://code.djangoproject.com/>
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