Re: [Python-Dev] Exception chaining and generator finalisation

1 Aug 2010

      Antoine Pitrou wrote:
...
It only happens if you call close() explicitly:
Well, that's only because the exception is being ignored and
you're not getting a traceback at all.

If you arrange to get a traceback, the same thing happens.

   import traceback as tb

   def g():
     try:
       try:
         yield 1
       finally:
         raise ValueError("Hovercraft contains eels")
     except Exception:
       tb.print_exc()

   gi = g()
   next(gi)
   del gi

-- 
Greg
...
...
...
...
def g():
...   try: yield 1
...   finally: 1/0
...
...
...
...
gi = g()
next(gi)
1
...
...
...
del gi
Exception ZeroDivisionError: ZeroDivisionError('division by zero',) in
 ignored
...
...
...
gi = g()
next(gi)
1
...
...
...
next(gi)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in g
ZeroDivisionError: division by zero
Regards
Antoine.
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: http://mail.python.org/mailman/options/python-dev/greg.ewing%40canterbury.ac...

Re: [Python-Dev] Exception chaining and generator finalisation

Greg Ewing