What are some examples of decorators in Python?

What are some examples of decorators in Python?

Decorators in Python are a way to modify or enhance functions or methods. Here are a few examples:

1. Logging Decorator: This decorator logs the execution of a function.
2. Timing Decorator: This measures the time a function takes to execute.
3. Authorization Decorator: This checks if a user has permission to execute a function.

Can you show me the code for a logging decorator?

Sure! Here's a simple logging decorator:

import functools

def log_function_call(func):
    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        print(f'Calling {func.__name__} with arguments {args} and {kwargs}')
        return func(*args, **kwargs)
    return wrapper

@log_function_call
def say_hello(name):
    return f'Hello, {name}!'

What about a timing decorator?

Here's an example of a timing decorator:

import time
import functools

def time_function(func):
    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        print(f'{func.__name__} took {end_time - start_time:.4f} seconds to execute.')
        return result
    return wrapper

@time_function
def compute_square(n):
    return n * n