What is the default return value for a function that does not explicitly return any value?

Question

Options

• Avoid
• BNull
• Cpublic
• DNone
• Eint

• A
  4% (1)
• C
  17% (4)
• D
  71% (17)
• E
  8% (2)

Explanation

In Python, when a function reaches its end without an explicit return statement, the interpreter automatically returns None - Python's built-in null/empty value representing the absence of a result.

Why the distractors are wrong:

• A (void) - void is a keyword in statically-typed languages like C, C++, and Java to declare that a function returns nothing; it doesn't exist in Python.
• B (Null) - Null (capitalized) is not a Python keyword; it's used in languages like Java (null) or SQL. Python uses None, not Null.
• C (public) - public is an access modifier from Java/C++; it has nothing to do with return values and doesn't exist in Python.
• E (int) - int is a data type, not a return value; no language automatically returns a zero integer from a function with no return statement.

Memory tip: Think "No return → None" - in Python, absence of an explicit return always gives you None, which you can verify by printing the result of any function that lacks a return statement.

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