PCPP1 Best Practices And Coding Conventions Practice Question
You need to ensure your code is readable by other Python developers. Which naming style should be used for variable names?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
snake_case.
PEP 8 prescribes snake_case (lowercase with underscores) for variable and function names.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
UPPER_SNAKE_CASE.
Why it's wrong here
Reserved for constants.
- ✗
camelCase.
Why it's wrong here
Common in Java, but not standard for Python variables.
- ✓
snake_case.
Why this is correct
The standard Python convention for variables.
- ✗
PascalCase.
Why it's wrong here
Reserved for class names.
About these practice questions
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP1 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP1 exam.