Dwarka Coding Club Page

#54 Monkey patching in python || Explained in 1 minute || Dwarka Coding Club Page

This video explains the monkey patching in python

Complete playlist: https://www.youtube.com/watch?v=n_F-_atStj8&list=PLLYZEFeS7wKiSN566R0keHLwucMmyXdqR

=============================== Notes =====================================

Monkey patching: for testing purpose, we modify the functionality of a function and after testing, we can set it back to its original functionality

class Sample:
def func1(self):
print("this is func1 from Sample")

def func2(self):
print("this is func2 from Sample")

def monkey_patch(self):
print("this is a patch for testing")

patch = Sample.func2
Sample.func2 = Sample.monkey_patch # monkey patching done
obj = Sample()
obj.func2()
Sample.func2 = patch # functionality restored
obj.func2()

#53 Lambda functions in python || Explained in 1 minute || Dwarka Coding Club Page

This video explains the lambda functions in python

Complete playlist: https://www.youtube.com/watch?v=n_F-_atStj8&list=PLLYZEFeS7wKiSN566R0keHLwucMmyXdqR

=============================== Notes =====================================

Lambda functions: they are anonymous functions which can be used if a single line logic

def square(num):
return num*num

print(square(20))

func = lambda x : x*x
print(func(10))

#51 Decorators in python || Explained in 1 minute || Dwarka Coding Club Page

This video explains the decorators in python

Complete playlist: https://www.youtube.com/watch?v=n_F-_atStj8&list=PLLYZEFeS7wKiSN566R0keHLwucMmyXdqR

=============================== Notes =====================================

Decorator: it can be used to enhance the functionality of a function

def adder(a,b):
print(a+b)

adder(10,20)

def dec(func):
def inner(x,y):
print("before function call")
func(x,y)
print("after function call")
return inner


def adder(a,b):
print(a+b)

adder(10,20)