what is the use of def in python

Question

def

Answer 1

Some times you need a function that's not included in python , so you can create your own function with (def) and use it as much as you want by calling it.. Ex.

def my_func():
print("My own function")

my_func()

>>>
'My own function'
>>>

Answer 2

Def indicates you are defining your own function (also known as a method). What a function is is simply a piece of code you can use over and over and over.

If I were to say:
Def MyFunc(args):
print(args)

MyFunc(5)

This would print out the number 5. I am sending the argument of 5 as the variable 'args' and printing it out in the function's code.

Answer 3

It is used if you want to run a code multiple times in your program but you don't want to repeat it many times thus saving space and making your code more readable and less complicated. example:

def print_i():
print("Hi")

print_i()
print("Hello")
print_i()

Result:

Hi
Hello
Hi