What does block mean?

A group of lines that belong together and run as one unit: the body of an if, a loop or a function. In Python a block is marked by indentation.

In a lesson

The two lines pushed in by four spaces are a block: a group of lines that belong to the if line above them. The if line ends with a colon :, which is Python's way of saying "a block starts on the next line".

Learn it

• Taught in F2.1 Blocks and indentation Decisions and loops, GCSE

Used in

• F1.3 Calling functions
• F2.2 Selection: if
• F2.3 else, elif and Boolean operators
• F2.4 Nested selection and match
• F2.5 Count-controlled loops: for
• F2.6 Condition-controlled loops: while
• F2.7 Loop patterns
• F4.1 Writing functions
• F5.3 Pseudocode and the exam reference language
• F6.5 Languages and translators

and 28 more lessons.

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