Monkey Patching in Python

Let’s get into the Python’s Monkey Patch. Monkey Patching is nothing but replacing a class method with another method outside the class at run time.In a word, it changes a class at run time. Let’s do it:

class MonkeyPatch:
def monkey_1(self):
return “I am monkey_1 from MonkeyPatch”

Let’s check it out in IDLE:

print MonkeyPatch().monkey_1()

The resulted output is: I am monkey_1 from MonkeyPatch

Let’s define the other method which is going to replace the class method:

def monkey_2(self):
return “I am monkey_2”

We have declared monkey_2 method. Now we can get the same return value from the class method. Let’s see:

MonkeyPatch.monkey_1 = monkey_2
print MonkeyPatch.monkey_1

The resulted output is: I am monkey_2

Python Monkey Patching