ImportError on AWS Lambda

[gmeans]

I'm using the django-rest-swagger package and get the following import error when running on Lambda. If I remove the swagger imports from my urls.py the app runs fine.

Any ideas?

Django Version: 1.11
Python Version: 2.7.12
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'corsheaders',
 'django_extensions',
 'rest_framework',
 'rest_framework.authtoken',
 'rest_framework_swagger',
 'authentication',
 'locations']
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.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/var/task/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/var/task/django/utils/deprecation.py" in __call__
  138.             response = self.process_request(request)

File "/var/task/django/middleware/common.py" in process_request
  62.         if self.should_redirect_with_slash(request):

File "/var/task/django/middleware/common.py" in should_redirect_with_slash
  80.                 not is_valid_path(request.path_info, urlconf) and

File "/var/task/django/urls/base.py" in is_valid_path
  158.         resolve(path, urlconf)

File "/var/task/django/urls/base.py" in resolve
  27.     return get_resolver(urlconf).resolve(path)

File "/var/task/django/urls/resolvers.py" in resolve
  362.             for pattern in self.url_patterns:

File "/var/task/django/utils/functional.py" in __get__
  35.         res = instance.__dict__[self.name] = self.func(instance)

File "/var/task/django/urls/resolvers.py" in url_patterns
  405.         patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)

File "/var/task/django/utils/functional.py" in __get__
  35.         res = instance.__dict__[self.name] = self.func(instance)

File "/var/task/django/urls/resolvers.py" in urlconf_module
  398.             return import_module(self.urlconf_name)

File "/usr/lib64/python2.7/importlib/__init__.py" in import_module
  37.     __import__(name)

File "/var/task/rangemanager/urls.py" in <module>
  18. from rest_framework_swagger.views import get_swagger_view

File "/var/task/rest_framework_swagger/views.py" in <module>
  8. from . import renderers

File "/var/task/rest_framework_swagger/renderers.py" in <module>
  1. import coreapi

File "/var/task/coreapi/__init__.py" in <module>
  2. from coreapi import auth, codecs, exceptions, transports, utils

File "/var/task/coreapi/auth.py" in <module>
  1. from coreapi.utils import domain_matches

File "/var/task/coreapi/utils.py" in <module>
  1. from coreapi import exceptions

Exception Type: ImportError at /admin
Exception Value: cannot import name exceptions

[gmeans]

This wasn't related to the library. It was due to pkg_resources not existing in the deployment package.

[lovelydinosaur]

Thanks for the update. Good to know. 👍

[balbalas]

@gmeans
Please post what was the resolution.

[gmeans]

@balbalas We ended up not deploying to lambda, but the issue is that setuptools (which includes pkg_resources) isn't available in the lambda runtime.

I believe you need to include it in your deployment package.