loop performance in global namespace (python-2.6.1)
Scott David Daniels
Scott.Daniels at Acm.Org
Thu Mar 12 14:53:58 EDT 2009
Poor Yorick wrote:
> In the following snippet, the loop in the global namespace takes twice
> as long as the loop in the function namespace. Why?
Locals are known to have no outside interaction, and so are not looked
up by name. your code could have a thread that did,
....
global counter
while True:
time.sleep(.1)
counter *= 2
....
For that matter, it could do ... del counter ... and force a NameError
in your second loop.
--Scott David Daniels
Scott.Daniels at Acm.Org
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