python runtime_error ai_generated true

werkzeug.exceptions.NotFound: 404 Not Found

ID: python/flask-abort-http-exception

Also available as: JSON · Markdown · 中文
80%Fix Rate
90%Confidence
0Evidence
2024-01-28First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

The abort(404) function is called, but the error handler is not properly set up to return a custom response.

generic

中文

调用了 abort(404) 函数，但未正确设置错误处理器来返回自定义响应。

Workarounds

  1. 95% success 
    Register an error handler: @app.errorhandler(404) def not_found(e): return jsonify(error='Not Found'), 404
  2. 90% success 
    Use abort(404, description="Custom message") and handle it in the handler.

Dead Ends

Common approaches that don't work:

  1. 80% fail

    This masks the error and gives incorrect status codes.

  2. 70% fail

    This is not suitable for APIs that need JSON responses.