PCPP1 Library Modules Practice Question
You are using configparser.ConfigParser to read a configuration file. You have a file where option names are case-sensitive. How do you ensure the parser respects this casing?
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
✓
parser.optionxform = lambda x: x
By default, ConfigParser converts keys to lowercase. You must override the optionxform method of the parser instance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
parser = ConfigParser(case_sensitive=True)
Why it's wrong here
The constructor does not accept a case_sensitive argument.
- ✗
parser.set_case(True)
Why it's wrong here
There is no set_case method.
- ✓
parser.optionxform = lambda x: x
Why this is correct
Setting optionxform to a function that returns the input string prevents lowercase conversion.
- ✗
parser.read(file, case='preserve')
Why it's wrong here
The read method does not take a case argument.
About these practice questions
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JA
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.