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defining a decorator

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Vinay Rawal answered on March 27, 2022 Popularity 7/10 Helpfulness 2/10

answer defining a decorator

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defining a decorator

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# defining a decorator
def hello_decorator(func):
 
    # inner1 is a Wrapper function in
    # which the argument is called
     
    # inner function can access the outer local
    # functions like in this case "func"
    def inner1():
        print("Hello, this is before function execution")
 
        # calling the actual function now
        # inside the wrapper function.
        func()
 
        print("This is after function execution")
         
    return inner1
 
 
# defining a function, to be called inside wrapper
def function_to_be_used():
    print("This is inside the function !!")
 
 
# passing 'function_to_be_used' inside the
# decorator to control its behaviour
function_to_be_used = hello_decorator(function_to_be_used)
 
 
# calling the function
function_to_be_used()

Popularity 7/10 Helpfulness 2/10 Language python

Source: www.geeksforgeeks.org

Tags: decorator python

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Contributed on Mar 21 2023

Vinay Rawal

0 Answers Avg Quality 2/10

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How to make a decorator

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"""
I want to make a decorator that prints something before and after every 
function it is placed in."""

def printer(func):  #This is our decorator that wraps any function it is placed in
    def child():
        print("fucntion started")
        func()
        print("function stoped")
    return child()


@printer       #With this syntax, we can decorate any function we want
def counter():
    for i in range(10):
        print(i)

Popularity 7/10 Helpfulness 5/10 Language python

Source: Grepper

Tags: decorator python

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Contributed on Jul 29 2023

Mohammad Sadati

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# decorator

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# decorator function
def outer(func):
    def inner():
        str1 = func() 
        return str1.upper() # addition of functionality
    return inner

@outer 
def print_str():
    return "good morning"

print(print_str())

# Output -> 'GOOD MORNING'
# A decorator is a function that takes another function as an argument, adds some kind of functionality to it and returns another function. Python decorators help add functionality to an existing code(function) which may aid in code reusability.

Popularity 9/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: decorator deco

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Contributed on Mar 27 2022

Impossible Impala

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basic decorator example

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def log_result(func):
  def inner():
    res = func()
    print(res)
    return res

Popularity 7/10 Helpfulness 1/10 Language python

Source: python.plainenglish.io

Tags: basic decorator python

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Contributed on Jun 22 2022

Json Bourne

0 Answers Avg Quality 2/10

what is a decorator

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#example of a simple decorator function in Python
def my_decorator(func):
    def wrapper():
        print("Something is happening before the function is called.")
        func()
        print("Something is happening after the function is called.")
    return wrapper

@my_decorator
def say_hello():
    print("hello!")

say_hello()
# Output: Something is happening before the function is called.
#         hello!
#         Something is happening after the function is called.

Popularity 1/10 Helpfulness 1/10 Language python

Source: www.adaface.com

Tags: decorator python

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Contributed on Jan 20 2023

Nithish Soorya

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defining a decorator

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defining a decorator

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