En Thu, 11 Dec 2008 07:49:42 -0200, R. Bernstein <ro...@panix.com>
escribió:
brooklineTom <brookline...@gmail.com> writes:
I want my exception handler to report the method that originally
raised an exception, at the deepest level in the call-tree. Let give
an example.
extract_stack() without any arguments is getting this from the
*current frame* which as you noted doesn't have the last exception
info included which has been popped; variable sys.last_traceback has the
frames
at the time of the exception, I think.
So in your code try changing:
aRawStack = traceback.extract_stack()
to
aRawStack = traceback.extract_stack(sys.last_traceback)
No, last_traceback is the last *printed* traceback in the interactive
interpreter. Use the third element in sys.exc_info() instead:
import sys, traceback
class SomeClass:
def error(self):
"""Raises an AttributeError exception."""
int(3).zork()
def perform_(self, aSelector):
try:
aMethod = getattr(self, aSelector)
answer = aMethod()
except AttributeError:
tb = sys.exc_info()[2]
try:
print "Using traceback.print_tb:"
traceback.print_tb(tb)
print "Using traceback.print_exception:"
traceback.print_exception(*sys.exc_info())
print "Using traceback.extract_tb:"
print traceback.extract_tb(tb)
finally:
del tb
SomeClass().perform_("error")
output:
Using traceback.print_tb:
File "test_tb.py", line 11, in perform_
answer = aMethod()
File "test_tb.py", line 6, in error
int(3).zork()
Using traceback.print_exception:
Traceback (most recent call last):
File "test_tb.py", line 11, in perform_
answer = aMethod()
File "test_tb.py", line 6, in error
int(3).zork()
AttributeError: 'int' object has no attribute 'zork'
Using traceback.extract_tb:
[('test_tb.py', 11, 'perform_', 'answer = aMethod()'), ('test_tb.py', 6,
'error'
, 'int(3).zork()')]
(The "3-name form of the except clause" that I menctioned previously only
exists in my imagination :) )
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
