Python uses to express the block structure of a program.

Indentation

Explanation:

The Python programming language uses indentation to delimit blocks. However, C++ and Java use the curly braces, "{" and "}," as the block delimiter.5 Mar 2020

indentation

Explanation:

Python uses indentation to express the block structure of a program. Unlike other languages, Python does not use braces, or other begin/end delimiters, around blocks of statements; indentation is the only way to denote such blocks. Each logical line in a Python program is indented by the whitespace on its left.

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