Do not process FileNotFoundError in FileResponse, resolves #979 #2856
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FileNotFoundError can be processed in exception_handlers
Kludex
requested changes
Feb 8, 2025
| @@ -341,7 +341,7 @@ async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None: | |||
| stat_result = await anyio.to_thread.run_sync(os.stat, self.path) | |||
| self.set_stat_headers(stat_result) | |||
| except FileNotFoundError: | |||
| raise RuntimeError(f"File at path {self.path} does not exist.") | |||
| pass | |||
| else: | |||
| mode = stat_result.st_mode | |||
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2 lines below, we have another RuntimeError.
Also, this is a breaking change.
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We can raise a new exception derived from both RuntimeError and FileNotFoundError. This way we can keep backward compatibility.
class NotFoundError(FileNotFoundError, RuntimeError): ...
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FileNotFoundError can be processed in exception_handlers
Summary
Avoid handling FileNotFoundError in FileResponse.
This allows FileNotFoundError to be properly handled using exception_handlers, for example, by returning a 404 error when a file is not found.
Checklist