Can Functions with Arguments Be Passed to Other Functions in Python?

Passing Functions with Arguments to Another Function in Python

Problem:

Is it feasible to pass functions with arguments to another function in Python? For instance, we want to have a function called perform that accepts other functions as arguments. These passed functions can have varying numbers of parameters, such as action1(), action2(p), and action3(p,r).

Solution:

Yes, it is possible in Python using variable-length argument lists (*args). Here's how you can achieve this:

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

def action1(args):
    # Code for action1

def action2(args):
    # Code for action2

def action3(args, r):
    # Code for action3

perform(action1)       # No arguments
perform(action2, p)     # One argument
perform(action3, p, r)  # Two arguments</code>

In this example, the perform function takes a function fun and arbitrary number of positional arguments *args. It then calls the passed function fun with the provided arguments.

By using *args, you can pass functions with any number of arguments to the perform function. The arguments will be automatically unpacked and passed to the underlying function.

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