python runtime_error ai_generated true

The view app.views.my_view didn't return an HttpResponse object. It returned None instead.

ID: python/django-view-return-none

Also available as: JSON · Markdown · 中文
80%Fix Rate
87%Confidence
0Evidence
2024-07-10First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

View function does not return any value, or returns None implicitly.

generic

中文

视图函数没有返回任何值，或隐式返回None。

Workarounds

  1. 95% success Ensure every code path returns an HttpResponse 
    def my_view(request):
    if condition:
        return HttpResponse('OK')
    return HttpResponse('Not OK')
  2. 90% success Use render or redirect 
    return render(request, 'template.html')

Dead Ends

Common approaches that don't work:

  1. Adding print statements instead of return 90% fail

    View must return an HttpResponse.

  2. Using return without value 80% fail

    Returns None.