Monkey Patching in Python (Dynamic Behavior)
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In Python, the term monkey patch refers to dynamic (or run-time) modifications of a class or module. In Python, we can actually change the behavior of code at run-time.
We use above module (monk) in below code and change behavior of func() at run-time by assigning different value.
Examples:
# monk.py class A: def func(self): print ("func() is being called") |
import monk def monkey_f(self): print ("monkey_f() is being called") # replacing address of "func" with "monkey_f" monk.A.func = monkey_f obj = monk.A() # calling function "func" whose address got replaced # with function "monkey_f()" obj.func() |
Output :monkey_f() is being called
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