Time code using syntax similar to tic and toc in MATLAB
pytictoc contains a class TicToc which replicates the functionality of MATLAB’s tic and toc for easily timing sections of code. Under the hood, pytictoc uses the default_timer function from Python’s timeit module.
pytictoc can be installed and updated via conda or pip.
pip install pytictoc pip install pytictoc --upgrade
conda install pytictoc -c ecf conda update pytictoc -c ecf
>> from pytictoc import TicToc >> t = TicToc() #create instance of class >> t.tic() #Start timer >> t.toc() #Time elapsed since t.tic() Elapsed time is 2.612231 seconds.
A string passed to the toc method changes the printed message. This can be useful to differentiate timing of different sections in the same script.
>> t.toc('Section 1 took') Section 1 took 16.494467 seconds.
An optional keyword argument restarts the timer (equivalent to t.tic()) after reporting the time elapsed.
>> t.toc(restart=True) Elapsed time is 36.986837 seconds. >>t.toc() Elapsed time is 2.393425 seconds.
If you want to return the time elapsed to a variable rather than printing it, use the tocvalue method.
>>spam = t.tocvalue() >>spam 20.156261717544602
The TicToc class can be used within a context manager as an alternative way to time a section of code. The time taken to run the code inside the with statement will be reported on exit.
>>with TicToc(): >> spam = [x+1 for x in range(10000)] Elapsed time is 0.002343 seconds.
Determining and setting the timer
pytictoc uses timeit.default_timer to time code. On Python 3.3 and later, this is an alias for time.perf_counter. On earlier versions of Python it is an alias for the most precise timer for a given system.
To see which function is being used:
>>import pytictoc >>pytictoc.default_timer <function time.perf_counter>
You can change the timer by simple assignment.
>>import time >>pytictoc.default_timer = time.clock >>pytictoc.default_timer <function time.clock>
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