[docs] [issue17544] regex code re-raises exceptions on success

[Zdeněk Pavlas]

Zdeněk Pavlas added the comment:

Yes, found that *certain* IO operations re-raise the error, too.  However, if the Python runtime expects extension writers to keep tstate->curexc_type clear, it should be documented in

http://docs.python.org/2/c-api/exceptions.html

There's not a single use case of PyErr_Clear() mentioned.

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assignee:  -> docs at python
components: +Documentation -Regular Expressions
nosy: +docs at python

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