Hooking Functions

Hook() class

class Hook():

def __init__(self, origf, hookf):

# Initialize the Hook object

self.origf = origf

self.hookf = hookf

def __call__(self, *args):

# Call the hook function before the original function and pass the same arguments

self.hookf(*args)

# Return the result of the original function

return self.origf(*args)

# func = Hook(func, func_hook)

Example usage

def add(*numbers):

s = 0

for number in numbers:

s += number

return s

def add_hook(*args):

print(*args)

add = Hook(add, add_hook)

print(add(1, 2, 3))

OUTPUT:

1 2 3

6

In this example I hooked a simple function that is returning the sum of some numbers.

You can use the same method to hook any function you want.