Python Coding challenge - Day 576| What is the output of the following Python Code?

 

Code Explanation:

1. Initialization of a List

funcs = []

Here, an empty list funcs is created.

This list will be used to store functions.

2. Start of a For Loop

for i in range(3):

This line begins a loop that will run 3 times with i taking the values: 0, 1, and 2.

In each iteration, a function will be defined and added to the list funcs.

3. Definition of a Function with Default Argument

    def f(i=i):

        return i

A new function f is defined inside the loop.

Here's the key: i=i sets the default value of the parameter i to the current value of the loop variable.

This captures the current value of i at that iteration of the loop.

When the function f() is called without arguments, it returns this captured value.

4. Appending the Function to the List

    funcs.append(f)

The function f (defined above) is added to the list funcs.

After 3 iterations, funcs will contain 3 different functions, each with its own default value of i.

5. Calling All Stored Functions

print([f() for f in funcs])

This line creates a list comprehension.

It calls each function f() in the funcs list and collects their return values.

Since each function returns the value of i it captured during its definition, the output will be:

[0, 1, 2]

Final Output

[0, 1, 2]

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