The following code is in a library
self.env = Environment(loader=PackageLoader('netjsonconfig.backends.openwrt', 'templates'),
trim_blocks=True)
The library is used by a consumer app, if the library is installed via python setup.py develop the consumer app works correctly while if the library is installed via pip the consumer app crashes with the following traceback (see failing build on travis):
Traceback (most recent call last):
File "/home/travis/build/openwisp/django-netjsonconfig/django_netjsonconfig/tests/test_device_admin.py", line 33, in test_download_config
response = self.client.get(path)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/test/client.py", line 503, in get
**extra)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/test/client.py", line 304, in get
return self.generic('GET', path, secure=secure, **r)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/test/client.py", line 380, in generic
return self.request(**r)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/test/client.py", line 467, in request
six.reraise(*exc_info)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/utils/six.py", line 686, in reraise
raise value
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/core/handlers/base.py", line 149, in get_response
response = self.process_exception_by_middleware(e, request)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/core/handlers/base.py", line 147, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/utils/decorators.py", line 149, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
response = view_func(request, *args, **kwargs)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/django/contrib/admin/sites.py", line 244, in inner
return view(request, *args, **kwargs)
File "/home/travis/build/openwisp/django-netjsonconfig/django_netjsonconfig/admin.py", line 52, in download_view
device.backend_instance.generate(device.name)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/netjsonconfig-0.3.1-py3.4.egg/netjsonconfig/backends/openwrt/openwrt.py", line 104, in generate
uci = self.render()
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/netjsonconfig-0.3.1-py3.4.egg/netjsonconfig/backends/openwrt/openwrt.py", line 77, in render
additional_output = renderer.render()
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/netjsonconfig-0.3.1-py3.4.egg/netjsonconfig/backends/base.py", line 41, in render
template = self.env.get_template(template_name)
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/Jinja2-2.8-py3.4.egg/jinja2/environment.py", line 812, in get_template
return self._load_template(name, self.make_globals(globals))
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/Jinja2-2.8-py3.4.egg/jinja2/environment.py", line 774, in _load_template
cache_key = self.loader.get_source(self, name)[1]
File "/home/travis/virtualenv/python3.4.2/lib/python3.4/site-packages/Jinja2-2.8-py3.4.egg/jinja2/loaders.py", line 235, in get_source
raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: system.uci
It seems that it's looking templates in ./templates and it obviously doesn't work. I think I've not understood TemplateLoaders in Jinja very well. What am I doing wrong?
When you pip install netjsonconfig it does not include a templates folder along side the python code. Looks like a setup.py issue.
(venv)Josh:netjsonconfig$ find .
.
./__init__.py
./backends
./backends/__init__.py
./backends/base.py
./backends/openwisp
./backends/openwisp/__init__.py
./backends/openwisp/openwisp.py
./backends/openwisp/schema.py
./backends/openwrt
./backends/openwrt/__init__.py
./backends/openwrt/openwrt.py
./backends/openwrt/renderers.py
./backends/openwrt/schema.py
./backends/openwrt/timezones.py
./exceptions.py
./schema.py
./utils.py
./version.py