Python Coding challenge - Day 1177| What is the output of the following Python Code?

 

Code Explanation:

🔹 1. Creating Function outer

def outer():

✅ Explanation:

A function named outer is defined.

Nothing executes yet.

Python only stores the function definition.

Current state:

outer → Function Object

🔹 2. Creating Local Variable

msg = "Python"

✅ Explanation:

When outer() runs, a local variable is created.

Value:

msg = "Python"

Memory:

outer()

 └── msg = Python

🔹 3. Creating Nested Function

def inner():

✅ Explanation:

A function named inner is defined inside outer.

This function can access variables of outer.

Current structure:

outer

 ├── msg

 └── inner

🔹 4. Return Statement Inside inner

return msg

✅ Explanation:

When inner() executes:

Python searches for:

msg

It is not inside inner.

So Python checks the enclosing function (outer).

Finds:

msg = "Python"

Returns:

"Python"

🔹 5. Calling inner()

return inner()

✅ Explanation:

Notice:

inner()

has parentheses.

So Python immediately executes inner.

Execution flow:

outer()

   ↓

inner()

   ↓

return msg

   ↓

"Python"

🔹 6. Returning Result From outer

inner() returns:

"Python"

Then:

return inner()

becomes:

return "Python"

So:

outer()

returns:

"Python"

🔹 7. Calling outer

print(outer())

✅ Explanation:

Python executes:

outer()

Inside outer:

msg = Python

↓

inner() called

↓

returns Python

↓

outer returns Python

🔹 8. Printing Result

print(outer())

prints:

Python

🎯 Final Output

Python

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