Python 2.11

What this Python language-mechanics question tests

This is a medium-difficulty question that probes your understanding of Python's class definition syntax and what constitutes a valid, empty class body. It rewards precision over memorization — you need to know which constructs Python accepts as legitimate class definitions and which patterns are syntactically invalid or produce side effects.

To answer correctly, you'll need to distinguish between statements that satisfy Python's requirement for a non-empty indented block (such as pass, docstrings, and ellipsis literals) and those that don't. The question also tests familiarity with how Python interprets different placeholder patterns, which matters when reading or refactoring codebases.

• Python's indentation and block-structure rules
• Difference between statements and expressions in a class body
• The role of pass, docstrings, and ... in stub code