Python · Writing & Running a Program

Why is mixing tabs and spaces for indentation in the same block dangerous, even when the code looks correctly aligned?

Answer locked. Get the free KnowCard app to reveal it — plus spaced-repetition review so it actually sticks.

This is one card from the KnowCard library — thousands more across SAP, Linux, Python and more. In the app you get the answer, AI explanations, and cards that come back right before you would forget them. Free to start on iOS, Android or the web.

More in Writing & Running a Program

What does this print? ``` print("a") # print("b") print("c") ```

Is a triple-quoted string like """ ... """ on its own a real multi-line comment in Python?

What's the difference between a statement and an expression in Python?

What does this print? ``` x = True if x: print("Hello World") ```

What does this print, and what's the trap? ``` x = False if x: print("Hi"); print("Bye") ```

What does this print? ``` var = ( 10 + 10 ) print(var) ```

Start learning today

Free to start — download the app or use it in your browser.