Conveniently measures the time of your loops, contexts and functions.

Related tags

General Utilities horology
Overview

Horology

Language grade: Python Total alerts Downloads PyPI version

CircleCI

Conveniently measures the time of your loops, contexts and functions.

Installation

Simply:

pip install horology

Works with python versions 3.6, 3.7, 3.8 and 3.9. Tested on Linux, Windows and MacOS.

Usage

The following 3 tools will let you measure practically any part of your Python code.

Timing an iterable (list, tuple, generator, etc)

Quick example

from horology import Timed

animals = ['cat', 'dog', 'crocodile']

for x in Timed(animals):
    feed(x)

Result:

iteration    1: 12.0 s
iteration    2: 8.00 s
iteration    3: 100 s

total 3 iterations in 120 s
min/median/max: 8.00/12.0/100 s
average (std): 40.0 (52.0) s

More cool stuff:

You can specify where (if at all) you want each iteration and summary to be printed, eg.:

for x in Timed(animals, unit='ms', 
               iteration_print_fn=logger.debug, 
               summary_print_fn=logger.info):
    feed(x)

Timing a function with a @timed decorator

Quick example

from horology import timed

@timed
def foo():
    ...

Result:

>>> foo()
foo: 7.12 ms

More cool stuff:

Personalize time unit and name

@timed(unit='s', name='Processing took ')
def bar():
    ...

Result:

>>> bar()
Processing took 0.185 s

Timing part of code with a Timing context

Quick example

Just wrap your code using a with statement

from horology import Timing

with Timing(name='Important calculations: '):
    ...

Result:

Important calculations: 12.4 s

More cool stuff:

You can suppress default printing and directly use measured time (also within context)

with Timing(print_fn=None) as t:
    ...
    
make_use_of(t.interval)

Time units

Time units are by default automatically adjusted, for example you will see foo: 7.12 ms rather than foo: 0.007 s. If you don't like it, you can override this by setting the unit argument with one of these names: ['ns', 'us', 'ms', 's', 'min', 'h', 'd'].

Contributions

Contributions are welcomed, see contribution guide.

Internals

Horology internally measures time with perf_counter which provides the highest available resolution, see docs.

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Comments
  • [ADD] iterations in decorator

    [ADD] iterations in decorator

    When using horology, I often end up putting in a for loop for performace based timings over many iterations.

    By adding it to the decorator, it can help for quick analysis.

    If you are happy I can also look at adding the same functionality to the context manage.

    I am unsure how this would fit with the timed_iterable, maybe conflicts, maybe not??

    I will let you decide :)

    opened by johnashu 10
Releases(v1.2.0)

  • v1.2.0(Oct 1, 2021)

    Link to this version on the The Python Package Index.

    Features

    • Use always 3 significant digits when formatting output strings. Such formatting is much more elegant and avoids adding decimal points for integers.

    Fixes

    • Wrong link in pepy badge.

    Docs

    • All docs were rewritten in beautiful numpy style.

    Tests and deployment

    • Add CI for python 3.9.
    • Use poetry to build and deploy
    Source code(tar.gz)
    Source code(zip)

  • v1.1.0(Jan 14, 2020)

    Feature

    • Time units allow aliases, by @johnashu

    Fix

    • Not rescaling total time in Timed iterable - fixed

    Docs

    • Add contribution guide
    • Add bug report template
    • Add feature request template
    • Add doc strings in tformatter module
    • Add badges to readme

    Tests:

    • Add CI for python 3.6-3.8
    • Add tests of Timed iterable summary
    • Add tests of tformatter exception

    Credits

    Thanks to our 1 contributor whose commits are featured in this release: @johnashu

    Source code(tar.gz)
    Source code(zip)

  • v1.0.0(Dec 11, 2019)

Owner
Maciej J Mikulski
Maciej J Mikulski
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