Nick Coghlan <[EMAIL PROTECTED]> added the comment:
Note that the display is correct in the case where the chaining is
"right", i.e.:
try:
raise IOError
except:
try:
raise KeyError
except Exception as ex:
raise AttributeError from ex
In that case, IOError is correctly flagged as the original exception,
with a KeyError then occurring during the IOError handling, and the
KeyError then directly causing the AttributeError.
The weird thing I am doing in the example here is to set the __cause__
of the exception I am raising to an exception that was never itself
actually raised (the "from KeyError" bit).
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Python tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue4486>
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