2012年2月26日 Nick Coghlan <[email protected]>: > Thanks for writing that up. I'd be amenable if the PEP was clearly > updated to say that ``raise exc from cause`` would change from being > syntactic sugar for ``_hidden = exc; _hidden.__cause__ = cause; raise > exc`` (as it is now) to ``_hidden = exc; _hidden.__cause__ = cause; > _hidden.__suppress_context__ = True; raise exc``. The patch should > then be implemented accordingly (including appropriate updates to the > language reference).
I add the following lines to the PEP: To summarize, ``raise exc from cause`` will be equivalent to:: exc.__cause__ = cause exc.__suppress_context__ = cause is None raise exc -- Regards, Benjamin _______________________________________________ Python-Dev mailing list [email protected] http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com