Question

This exception occurs whenever a local or global variable name is not defined.

• A. ValueError
• B. TypeError
• C. OSError
• D. NameError

Hint:

When debugging in Python, always check if variables or functions are defined in the scope where they are used to avoid \texttt{NameError}.

Answer 1

The Correct Option is D

A \texttt{NameError} in Python occurs when the code attempts to use a variable or function name that has not been defined yet, either locally or globally. It is raised when Python cannot find the variable or function name in the current namespace. In contrast, \texttt{ValueError}, \texttt{TypeError}, and \texttt{OSError} are associated with other types of errors, such as invalid values, incorrect types, and system-related issues, respectively. Therefore, the correct answer is "NameError."