Fundamentals
Python Basics Test
20 multiple choice questions on Python: types, collections, functions, comprehensions, exceptions and common pitfalls.
- Questions
- 20
- Time
- 20 min
- Pass mark
- 60%
No account or email needed.
About this test
This test checks the foundations of Python: built-in types and which ones can change, lists, dictionaries and sets, functions and arguments, comprehensions, generators, exceptions, and a few well-known traps such as mutable default arguments.
It assumes Python 3.
What it covers
The question set has 24 questions: 14 easy, 8 medium and 2 hard. Each attempt draws 20 of them at random, so a second try is not the same test.
- Python (24)
Try a few sample questions
These are real questions from the set, with the answers and a short explanation. Read the question, decide, then open it to check.
Sample 1 · Python · easyWhich of these Python types is immutable?Show the answer
- list
- dict
- tupleCorrect
- set
A tuple cannot be changed after it is created. Lists, dictionaries and sets can.
Sample 2 · Python · easyWhat does this code print?Show the answer
print(type(3 / 2))- <class 'int'>
- <class 'float'>Correct
- <class 'str'>
- 1
The / operator always returns a float in Python 3, even when the result is a whole number.
Sample 3 · Python · easyWhat does 7 // 2 evaluate to?Show the answer
- 3.5
- 3Correct
- 4
- 1
// is floor division. It divides and rounds down to a whole number.
How it works
- 20 multiple choice questions, drawn at random from a larger set.
- 20 minutes on the clock. The test submits itself when time runs out.
- Pass mark: 60%.
- No marks are taken off for wrong answers, so answer every question.
- Some questions have more than one correct answer. You must pick all of them to score.
- When you finish you see your score, the correct answers and a short explanation for each.
- Your answers save as you go, so a dropped connection will not lose your work.
- Please stay on the test page. Switching to another tab or window is recorded and you will see a warning.
- Copying text, printing and screenshots are not allowed during the test.
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