On 06.08.12 20:02, Dieter Maurer wrote:
Serhiy Storchaka <storch...@gmail.com> writes:
On 05.08.12 09:30, Steven D'Aprano wrote:
If you are working in a tight loop, you can do this:
if VERBOSE_FLAG:
for item in loop:
print(DEBUG_INFORMATION)
do_actual_work(item)
else:
for item in loop:
do_actual_work(item)
Or this:
if VERBOSE_FLAG:
def do_work(item):
print(DEBUG_INFORMATION)
do_actual_work(item)
else:
do_work = do_actual_work
for item in loop:
do_work(item)
Be warned: a function call is *much* more expensive than an
"if variable:".
As any actual work. As iteration.
Yet one way:
def verbose_iter(it):
for i in it:
print(DEBUG_INFORMATION)
yield i
...
if VERBOSE_FLAG:
loop = verbose_iter(loop)
for item in loop:
do_work(item)
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