Marko Rauhamaa <ma...@pacujo.net>:
>>> Surprisingly this variant could raise an unexpected exception:
>>>
>>> ==============================
>>> try:
>>> do_interesting_stuff()
>>> except ValueError:
>>> try:
>>> log_it()
>>> finally:
>>> raise
>>> ==============================
>>>
>>> A Python bug?
> [...]
> My Python did do exception chaining, but the problem is the surface
> exception changes, which could throw off the whole error recovery.
BTW, the code above can be fixed:
==============================
try:
do_interesting_stuff()
except ValueError as e:
try:
log_it()
finally:
raise e
==============================
Now the surface exception is kept and the subsidiary exception is
chained to it.
I'm a bit baffled why the two pieces of code are not equivalent.
Marko
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