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A (BSD licensed) context manager for timing execution.

Project description

A (BSD licensed) context manager for timing execution. Useful for benchmarking everyday Python code easily/cleanly.


Usage is trivial. Simply wrap your code in a Timer context manager. Example:

from chrono import Timer

with Timer() as timed:
    # Put whatever logic you want here.
    # ``for`` loops are great here for timing things that are very fast.

print("Time spent: {0} seconds".format(timed.elapsed))


  • Python 2.6+ or Python 3.3+ (may work on Python 2.5)




This is implemented in pure Python, so it doesn’t have the accuracy a C extension would have. There’s also overhead for the context manager function calls, so don’t use this to bench C code.

That said, for most everyday usage of Python, it’s very helpful.

Running Tests


$ git clone
$ cd chrono
$ virtualenv -p python3 env3
$ . env3/bin/activate
$ pip install nose


$ nosetests -s -v

chrono is maintained with 100% passing tests at all times.


  • Added links to the docs
  • Added initial docs
  • Fixed up the main docstring in Timer
  • Initial release

Project details

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