WIP: Handle Logger.exception() outside "except" block #635
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src/structlog/processors.py
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| if exc_info: | ||
| if exc_info != (None, None, None): |
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looks like this was the actual bug, right? because a negative result from _figure_out_exc_info isn't falsey
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Yes, more or less. The (None, None, None) case was handled elsewhere (surprisingly, from a typing perspective ;-)), but it only worked for the default exception formatter.
src/structlog/processors.py
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| _figure_out_exc_info(exc_info) | ||
| ) | ||
| exc_info = _figure_out_exc_info(event_dict.pop("exc_info", None)) | ||
| if exc_info != (None, None, None): |
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It seems like this would pass any None/Falsy exc_info in the event dict into the formatter. Is this expected?
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Changed it to if exc_info and exc_info != (None, None, None). This should work.
Not happy though, that exc_info can be literally anything. I will take a look if this can somehow be changed/improved.
| assert {"exception": "MISSING"} == format_exc_info( | ||
| None, None, {"exc_info": ei} | ||
| ) | ||
| assert {} == format_exc_info(None, None, {"exc_info": ei}) |
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Is this okay for you, @hynek ? The format_exc_info() handled the (None, None, None) (even though its signature suggested that exc_info: ExcInfo) and returned {"excepiton": "MISSING"}.
Now, (None, None, None) will no longer be passed to it and thus there will no longer be a MISSING.
The main problem of the function is that *v* can really be anything (depending on what the users) do and the annotated return type did not properly match it (e.g., if *v* was "0", the return value would be "0"). The function now rigorously checks the user input and either returns the desired result (an exc info tuple) or None. This makes it easier and safer to use this function.
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I think that 0c02f29 really fixes the problem in the right way. I added a longer description to the commit to explain why. Let me know, what you think :) |
Fixes: #634
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mainbranch – use a separate branch!api.py.docs/api.rstby hand.versionadded,versionchanged, ordeprecateddirectives..rstand.mdfiles is written using semantic newlines.