Value Count

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

easy

Problem

A data quality check needs to know how often a specific sentinel value appears in a column. Return a count of how many times the target appears in the list.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a sandboxed Docker environment and grades it instantly.