Match each Python string method to its action.
Drag a concept onto its matching description — or click a concept then click the description.
Converts all characters to uppercase
Converts all characters to lowercase
Removes leading and trailing whitespace
Splits a string into a list of substrings
Joins elements of an iterable into a single string
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
.upper(): Returns a copy of the string converted to uppercase
These are common string methods used for text manipulation. Correct matches: .upper() converts to uppercase, .lower() to lowercase, .strip() removes leading/trailing whitespace, .split() splits into a list. The distractors swap definitions to test understanding.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
.upper(): Returns a copy of the string converted to uppercase
Why this is correct
.upper() converts all lowercase letters in the string to uppercase.
.lower(): Returns a copy of the string converted to lowercase
Why this is correct
.lower() converts all uppercase letters in the string to lowercase.
.strip(): Returns a copy of the string with leading and trailing whitespace removed
Why this is correct
.strip() removes whitespace characters from the beginning and end of the string.
.split(): Splits the string into a list of substrings based on a delimiter
Why this is correct
.split() divides the string at the specified delimiter and returns a list of parts.
.upper(): Splits the string into a list of substrings
Why it's wrong here
Incorrect — .upper() converts to uppercase, not splits. The split action belongs to .split().
.strip(): Returns a copy of the string converted to uppercase
Why it's wrong here
Incorrect — .strip() removes whitespace, not converts case. The uppercase action belongs to .upper().
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Last reviewed: Jun 11, 2026
This PCEP 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 PCEP exam.
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