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Intercept function and method calls

Project description


Intercepts allows you to intercept any function call in python and handle it in any manner you choose. For example, you can pre-process the inputs to a function, or apply post-processing on its output. Intercepts also allows you to completely replace a function with a custom implementation.

>>> increment(41)
>>> intercepts.register(increment, handler)
>>> increment(41)
>>> intercepts.unregister(increment)
>>> intercepts.register(increment, handler2)
>>> increment(41)
'The answer is: 42'
>>> intercepts.unregister_all()

Handler functions receive the intercepted function as their first argument, as well as all of the arguments to the intercepted function.

>>> def handler(func, num):
...  result = func(num)
...  return num - (result - num)
>>> def handler2(func, *args, **kwargs):
...  return 'The answer is: %s' % func(*args, **kwargs)


Intercepts can be installed using pip.

$ pip install intercepts


Sorry, we are in the very early stages of development so documentation is limited. There is some documentation in the docs directory, but for the most up-to-date documentation, use pydoc.

$ pydoc intercepts

This software is in early stages of development and may be unstable.

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Filename, size & hash SHA256 hash help File type Python version Upload date
intercepts-0.1.1-py2.py3-none-any.whl (4.4 kB) Copy SHA256 hash SHA256 Wheel py2.py3 Apr 21, 2018
intercepts-0.1.1.tar.gz (5.5 kB) Copy SHA256 hash SHA256 Source None Apr 21, 2018

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