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python-monkey-business 1.0.0

Utility functions for monkey-patching python code


python-monkey-business is a package that provides a decorator for monkey-patching python functions at runtime.


Using pip:

pip install python-monkey-business

Or, to install from source:

pip install -e git+

If the source is already checked out, use setuptools:

python develop


To use python-monkey-business to swap out a function in a class or module at runtime:

import monkeybiz

from foomodule import FooClass
import barmodule

# This replaces with our method
def bar(original_fn, *args, **kwargs):
    print "Patched!"
    return original_fn(*args, **kwargs)

# This replaces barmodule.baz with our function
def baz(original_fn, *args, **kwargs):

The first argument to monkeybiz.patch can be either a module, a class, or a list of modules and/or classes. The decorator also takes optional name and avoid_doublewrap keyword arguments. If name is omitted, the name of the function being patched will be the name of the function being decorated. If avoid_doublewrap is True (the default), then functions and methods can only be patched once using this function.

Use monkeybiz.unpatch() to revert a monkey-patched function to its original.


This code is licensed under the Simplified BSD License. View the LICENSE file under the root directory for complete license and copyright information.

File Type Py Version Uploaded on Size
python-monkey-business-1.0.0.tar.gz (md5) Source 2016-03-22 3KB
python_monkey_business-1.0.0-py2.py3-none-any.whl (md5) Python Wheel 2.7 2016-03-22 5KB