[Python-Dev] bpo-36829: Add sys.unraisablehook() (original) (raw)

Serhiy Storchaka storchaka at gmail.com
Thu May 16 06:54:04 EDT 2019

16.05.19 13:12, Victor Stinner пише:

I came to the UnraisableHookArgs structseq idea because of my bad experience with extension warnings "hooks". Let me tell you this story :-)

I know this story, because I followed these issues.

For unraisable hook, it's not hard to imagine other useful parameters that can be passed to the hook to provide more context about the exception. For example, right now we only pass one object. But there are cases where a second object would totally makes sense.

If you have plans for adding new details in future, I propose to add a 6th parameter "context" or "extra" (always None currently). It is as extensible as packing all arguments into a single structure, but you do not need to introduce the structure type and create its instance until you need to pass additional info.

More information about the Python-Dev mailing list