requesting redoc view gives me "type error list indicies must be integers or slices, not str" on "data['status_code'] = response.status_code"

[bryangeplant]

Just entered new company, codebase is a mess, trying to integrate redoc into the system, but this error pops up. Weirdly enough, stacktrace doesnt pass through anything. Anyone has any idea how can I solve it? Is it a version problem? Thank you kindly for reading.

Environment:


Request Method: GET
Request URL: http://localhost:8100/redoc/

Django Version: 3.0.7
Python Version: 3.8.12
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.gis',
 'rest_framework',
 'rest_framework_gis',
 'corsheaders',
 'drf_yasg',
 'core.api',
 'storages']
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',
 'corsheaders.middleware.CorsMiddleware']



Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 145, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python3.8/site-packages/django/core/handlers/base.py", line 143, in _get_response
    response = response.render()
  File "/usr/local/lib/python3.8/site-packages/django/template/response.py", line 105, in render
    self.content = self.rendered_content
  File "/usr/local/lib/python3.8/site-packages/rest_framework/response.py", line 70, in rendered_content
    ret = renderer.render(self.data, accepted_media_type, context)
  File "/usr/local/lib/python3.8/site-packages/drf_yasg/renderers.py", line 70, in render
    return TemplateHTMLRenderer().render(swagger, accepted_media_type, renderer_context)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/renderers.py", line 166, in render
    context = self.get_template_context(data, renderer_context)
  File "/usr/local/lib/python3.8/site-packages/rest_framework/renderers.py", line 175, in get_template_context
    data['status_code'] = response.status_code

Exception Type: TypeError at /redoc/
Exception Value: list indices must be integers or slices, not str

requirements.txt

asgiref==3.4.1
asn1crypto==1.4.0
astroid==2.6.5
asyncpg==0.23.0
cachetools==4.2.2
certifi==2021.5.30
cffi==1.14.5
chardet==4.0.0
coreapi==2.3.3
coreschema==0.0.4
Django==3.0.7
django-cors-headers==3.4.0
django-environ==0.4.5
django-extensions==3.1.5
django-filter==2.4.0
django-storages==1.9.1
djangorestframework==3.11.0
djangorestframework-gis==0.15
drf-nested-routers==0.93.3
drf-yasg==1.20.0
google-api-core==1.27.0
google-auth==1.24.0
google-cloud-core==1.7.1
google-cloud-secret-manager==2.1.0
google-cloud-storage==1.40.0
google-crc32c==1.1.2
google-resumable-media==1.3.1
googleapis-common-protos==1.53.0
graphviz==0.19.1
greenlet==1.1.1
grpc-google-iam-v1==0.12.3
grpcio==1.38.1
gunicorn==20.0.4
idna==2.10
inflection==0.5.1
isort==5.9.3
itypes==1.2.0
Jinja2==3.0.3
lazy-object-proxy==1.6.0
libcst==0.3.19
MarkupSafe==2.1.0
mccabe==0.6.1
mypy-extensions==0.4.3
numpy==1.21.5
openapi-codec==1.3.2
packaging==21.0
pandas==1.3.5
pg8000==1.24.0
proto-plus==1.19.0
protobuf==3.17.3
psycopg2-binary==2.8.5
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycparser==2.20
pylint==2.9.6
pyparsing==2.4.7
python-dateutil==2.8.2
pytz==2021.1
PyYAML==5.4.1
requests==2.25.1
rsa==4.7.2
ruamel.yaml==0.17.21
ruamel.yaml.clib==0.2.6
scramp==1.4.1
simplejson==3.17.6
six==1.16.0
SQLAlchemy==1.4.22
sqlparse==0.4.1
toml==0.10.2
typing-extensions==3.10.0.0
typing-inspect==0.7.1
unicodecsv==0.14.1
uritemplate==4.1.1
urllib3==1.26.6
wrapt==1.12.1

[hashlash]

The last part indicates that the data variable, which supposed to be a dict, is mistakenly passed a list instance. After some inspection, it seems that the data variable is passed in the Response constructor. Upgrading Django (and perhaps corsheaders) might help.

  File "/usr/local/lib/python3.8/site-packages/rest_framework/renderers.py", line 175, in get_template_context
    data['status_code'] = response.status_code

Exception Type: TypeError at /redoc/
Exception Value: list indices must be integers or slices, not str

Your Django version is now unsupported. It's a good practice to always make sure all of your dependencies are still supported.

[mymedia2]

This problem is similar to that described in #5236 issue. The error happens in list views without pagination.