Nick Coghlan added the comment:
So, I've been pondering the idea of traceback/frame annotations and exception
trees a bit.
And what I'm wondering is if it may make sense to have the ability to annotate
*frames* at runtime, and these annotations can be qualified by module names.
So, for example, you might be able to write things like:
sys.annotate_frame("codecs", "encoding", the_encoding)
sys.annotate_frame("codecs", "decoding", the_encoding)
sys.annotate_frame("traceback", "hide", True)
sys.annotate_frame("traceback", "context", exc)
And then the traceback display machinery would be updated to do something
useful with the annotations.
I'm not sure how ExitStack would cope with that (or other code that fakes
tracebacks) but it's something to ponder.
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<http://bugs.python.org/issue18861>
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