How to Pass Functions with Arguments in Python?

Passing Functions with Arguments in Python

In Python, functions can be treated as first-class objects, allowing them to be passed as arguments to other functions. However, when passing functions with arguments, a different approach is required compared to simply passing the function name.

To pass a function with arguments to another function, you can use Python's asterisk operator (*). This operator can be used to collect arbitrary arguments into a tuple.

Here's an example:

<code class="python">def perform(fun, *args):
    fun(*args)

# Define functions with arguments
def action1():
    # Some action

def action2(p):
    # Some action with parameter 'p'

def action3(p, r):
    # Some action with parameters 'p' and 'r'

# Call perform function with different functions and arguments
perform(action1)
perform(action2, p)
perform(action3, p, r)</code>

In this example, the perform function takes two parameters: a function fun and an arbitrary number of arguments denoted by *args. It then calls the passed function fun with the provided arguments using the *args tuple unpacking.

Using this approach, you can pass functions with arguments to other functions in Python, providing greater flexibility and code reusability.

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