Timer for Python
Project description
Timer for Python
Timer for Python makes it easy for beginners and experts to measure how much time it takes to run Python programs and gauge performance of multiple, smaller bits of code.
Prerequisites
- Python 3.8 or higher
- macOS
- It may work on Windows or Linux, but hasn't been tested
Installation
PyPI
pip install timer-for-python
Homebrew
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NuGet
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Getting Started
Simple
Firstly, add the Timer to your imports:
from timer import Timer
Wrap the Timer function around your code to measure performance of the executed block of code:
timer = Timer()
timer.start()
# Insert your code here
timer.stop() # Output example: 12.34 seconds
Advanced
Decimals
Instead of the default value 2
for decimals
, you can set the output precision up to 9
in the decimals
argument:
timer = Timer()
timer.start(decimals = 5)
# Insert your code here
timer.stop() # Output example: 0.12345 seconds
Multiple Threads
Imagine that you want to troubleshoot which parts of your code are performing better or worse? Or you want to split test the performance of different methods? Timer for Python is a quick, easy way to get the job done.
To measure performance of multiple blocks of code, use the thread
argument to split the Timer instances:
timer = Timer()
timer.start(thread = "A")
# Insert your code here
timer.start(thread = "B", decimals = 5)
# Insert more code here
timer.stop(thread = "B") # Output example: 0.12345 seconds for thread B
# Insert even more code here
timer.stop(thread = "A") # Output example: 6.78 seconds for thread A
Documentation and Other Features
Precision in Nanoseconds
Timer for Python uses the native time.perf_counter_ns()
function for maximum resolution in nanoseconds.
Decimals in Output
To set the number of decimals in the output (only if less than an hour), use the decimals
argument.
Either, set the general precision of decimals when initiating the Timer:
timer = Timer(decimals = 5)
timer.start()
# Insert your code here
timer.stop() # Output example: 0.12345 seconds
Or set the decimals when starting a new thread, which will also override the general decimals defined when initiating the Timer:
timer = Timer(decimals = 5)
timer.start(decimals = 9)
# Insert your code here
timer.stop() # Output example: 0.123456789 seconds
Default Decimals and Supported Interval
Default value for decimals
is 2
. The range is minimum 0
(for no decimals) and up to 9
.
Humanised Output
Timer for Python supports time measurement from nanoseconds to days.
But. If the Timer runs for several minutes, it doesn't make sense to display the output time in milliseconds. And similarly if it runs for hours, it doesn't make sense to display the output time in seconds.
Therefore, the output is "humanised" so it's easier to read. Examples:
Elapsed time: 123 nanoseconds
Elapsed time: 4.56 microseconds
Elapsed time: 56.78 milliseconds
Elapsed time: 7.89 seconds
Elapsed time: 67.89 seconds (1m 8s)
Elapsed time: 3m 4s
Elapsed time: 2h 3m 4s
Elapsed time: 1d 2h 3m 4s
Graceful Error Handling
Timer for Python is designed with several nested try/catch
clauses so it handles exceptions gracefully and therefore shouldn't break your application while running. However, if you find a bug, please report it.
Donate
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Contribute
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Report Bugs
Report bugs and issues here.
MIT License
Copyright (c) 2020 – present Jakob Bagterp
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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