On Tue, Aug 26, 2014 at 6:26 AM, diliup gabadamudalige
<dili...@gmail.com> wrote:
> Hi all,
>
> 1. why do some say that the time module is more accurate than the timeit
> module?
> s = time.time()
> or
> s = timeit.timeit()
>
> 2. Why is it that both modules never return the same answer on each run?
The two functions have completely different uses, and do completely
different things.
>>> help(time.time)
Help on built-in function time in module time:
time(...)
time() -> floating point number
Return the current time in seconds since the Epoch.
Fractions of a second may be present if the system clock provides them.
In other words, return this: http://en.wikipedia.org/wiki/Unix_time
>>> help(timeit)
NAME
timeit - Tool for measuring execution time of small code snippets.
[…]
| timeit(self, number=1000000)
| Time 'number' executions of the main statement.
|
| To be precise, this executes the setup statement once, and
| then returns the time it takes to execute the main statement
| a number of times, as a float measured in seconds. The
| argument is the number of times through the loop, defaulting
| to one million. The main statement, the setup statement and
| the timer function to be used are passed to the constructor.
--
Chris “Kwpolska” Warrick <http://chriswarrick.com/>
PGP: 5EAAEA16
stop html mail | always bottom-post | only UTF-8 makes sense
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