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Questions tagged [timeit]

A Python built-in module for measuring execution time of small code snippets.

A Python built-in module for measuring execution time of small code snippets. It provides a Timer class which can be used to measure execution times.

According to the documentation, it "avoids a number of common traps for measuring execution times".

Documentation: https://docs.python.org/3/library/timeit.html

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Measuring the delay of background changing and sound playing using Timeit (python)

I need to figure out the delay between sending a command to change the background color or playing a sound and these events actually occurring using timeit.(I'm on windows, Python 2.73) I'm doing a reaction time test where I'll record the time(using…
user1830663
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I am getting an error when I am trying to excute this code

SUMLEV REGION DIVISION ... RNETMIG2013 RNETMIG2014 RNETMIG2015 0 40 3 6 ... 1.383282 1.724718 0.712594 1 50 3 6 ... -2.722002 2.592270 -2.187333 2 50 3 6 ... …
Yana Ghanim
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Why timeit shows incorrect measurement with this numba function?

This code snippet measures execution time of a Numba function using performance counter: import numba as nb import numpy as np from time import perf_counter from timeit import timeit x = np.arange(1_000_000).reshape(1000,…
Paul Jurczak
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Timeit module is rejecting print("\n") statements

I am trying to run the following code example from timeit import timeit as t setup = ''' import time from multiprocessing import Pool def square(x): square = x * x time.sleep(1) return square ''' case01 = ''' def caso01(): …
Ernesto
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Why is the time of program execution different every time?

Why am I getting each time I execute the following program different times for t1_perf_time and t1_timeit_time? Why are the times not for every execution the same? import numpy as np import time import timeit t0_process_time =…
MsX
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How to make timeit.Timer() work with output of itertools.starmap()

I am having a hard time wrapping my head around why i can make timeit.Timer() work with output from functools.partial() but not with output from itertools.starmap(). What I basically need is starmap(func, tuples) to have the same 'attributes' as…
RWS
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How to measure time for Python programs that crash?

I want to accurately measure time of a Python code, that crashes. I can use the time command for unix, but that isn't as precise as time.time module in Python start = time.time() assert(1 < 0) print(time.time() - start) The code -- above --…
Sahil
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Using timeit in interactive mode

How can I implement this ipython code in python? [1] %timeit sum(list(range(1000))) Ps: I want to do it in a single line of code. I have tried several times but failed every time. Thanks.
sbhhdp
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Inconsistency between timieit with number and timeit without a number

I've noticed that results change rapidly between running timeit with the regular arugments and timeit with the argument number=1. Here is the example that I found. import sympy as sp import numpy as np var = (sp.Symbol("x"), sp.Symbol("y"),…
Wraith1995
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Time a single execution of a function using timeit

print function is called many times.I want to calculate function's time.I wrote codes, import timeit class UserClass: def callname(self): print("HiTom") if __name__ == '__main__': def test(): user = UserClass() …
user9673470
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Calculate run time of a given function python

I have created a function that takes in a another function as parameter and calculates the run time of that particular function. but when i run it, i can not seem to understand why this is not working . Does any one know why ? import time import…
Charith Jayawardana
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use timeit inside a function

Say I want to test two heap implementations like this: def test_heap(): for i in range(15): test_list = random.sample(range(10000), 1000) print(timeit("h = heap1(test_list)", "setup")) print(timeit("h = heap2(test_list)",…
Liumx31
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python: syntax issue with timeit and passing arguments

I want to test the Big-O performance of the test1(n) function below so I'm trying to use timeit to see the performance. However, the code right now doesn't produce anything... I think the issue is in the t1 = timeit.Timer line with the argument not…
olala
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use timeit.Timer() to time a function with two arguments in a class

I am trying to use timeit to get the run time of one of the function in the with two arguments, but I keep getting error: cannot import name make_heap() class queueHeap(): def make_heap(self, alist): i = len(alist)//2 …
Joe
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Python fast check if any item from set a is in set b

I want optimize code and learn python speed (behaviour). Can you show the fastest way to compare two sets/dicts to find if any duplicate inside. I do some research but still not sure if it final solution. from timeit import Timer import…
Chameleon
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