On 8/24/2012 10:44 AM, Ramchandra Apte wrote:
On Wednesday, 22 August 2012 22:13:04 UTC+5:30, Terry Reedy wrote:
>>> timeit.timeit("list(i for i in ranger if False)", "ranger=range(0)")
>>
0.91
>>> timeit.timeit("list(i for i in ranger if False)", "ranger=range(20)")
1.28
>>> timeit.timeit("list(filter(lambda i: False, ranger))",
"ranger=range(0)")
0.83
>>> timeit.timeit("list(filter(lambda i: False, ranger))",
"ranger=range(20)")
2.60
Your mail agent in inserting blank lines in quotes -- google?
See if you can turn that off.
Your examples with lambda i:False are unrealistic - you are comparing
> `if False` vs <lambda function>(xx) - function call vs boolean check
That is exactly the comparison I wanted to make. The iteration + boolean
check takes .37 for 20 items, the iteration + call 1.77.
--
Terry Jan Reedy
--
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