Dispatching caught exceptions

[Gerhard Häring]

Gerson Kurz wrote:
> I've written a small mixin class that can be used to synchronize
> member function calls by enclosing the actual function call in a
> mutex acquire/release block. The class reads as follows:
> [snip]

I remember writing such a thing myself :)

> OK, but sometimes I want a thus synchronized function to throw an
> exception anyway? What I'm looking for thus is something like
> 
> try:
> 	...
> except anything:
> 	# store exception "anything" somewhere
> self.mutex.release()
> raise exception
> 
> This seems like really simple stuff, but I cannot find it. (Maybe
> because I don't like exceptions anyway?)

You need try: ... finally:

try:
    ...
finally:
    self.mutex.release()

-- Gerhard