[Python-Dev] Where to put the interrupt module?

2003年6月13日 09:50:22 -0400

On Fri, Jun 13, 2003 at 09:11:47AM -0400, Guido van Rossum wrote:
>> There's also a race condition in the language design that would need
> to be fixed ...
>> lock.acquire()
> try:
> ...critical section code...
> finally:
> lock.release()
>> I've seen a proposal (I think it was in a paper presented at the
> second Little Languages conference at MIT, earlier this year) of a
> syntactic extension that could be used:
>> initially:
> lock.acquire()
> try:
> ...critical section code...
> finally:
> lock.release()

Part of the idea (or at least my idea) behind adding the do/with
statement which was discussed a while ago was to fix this problem.
 with lock:
 ... critical section ...
would ensure that lock.release() is called properly.
Neal