Python Type Conversion and input() Quiz

Everything a user types into input() arrives as text, even when it looks like a number. Before a program can add stage masses, compare burn times or multiply a crew size, it has to convert that text with int() or float(), and sometimes turn numbers back into text with str(). This free quiz has 15 short questions on how Python converts between types and what happens when a program forgets to.

What the quiz covers

• What input() returns, including when the user just presses Enter
• Converting text with int() and float(), and which text raises a ValueError
• Numbers kept as text: joining, comparing and counting digits
• What int() does to a negative float, and which values bool() turns into False
• Checking input with isdigit(), reading several numbers with split() and accepting a decimal comma

How it works

• 15 questions: 11 with one correct answer, 4 where you select every correct answer
• After each question you see the correct answer and a short explanation
• In questions with input(), the answer is only what print() shows, not the prompt or what the user types
• No time limit and no account needed
• Score 70% or more (11 of 15) to pass

You can try the conversions in runnable examples: type conversion, basic data types and dynamic typing. After this one, try the Python Data Types Quiz or the Python Variables Quiz.