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Why Python Uses Indentation Instead of Braces, Explained for Beginners

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Python uses indentation to define code blocks, unlike languages such as JavaScript and Java that rely on curly braces. This design choice enforces a consistent, readable code structure, but it can trip up newcomers who mix tabs and spaces or use inconsistent spacing. Python's parser strictly distinguishes between tabs and spaces, raising an IndentationError or SyntaxError even when the code appears visually aligned. Experts recommend always using 4 spaces per indentation level and configuring code editors like VS Code or PyCharm to automatically convert tabs to spaces. Linting tools such as flake8 can also help detect indentation issues before code is executed.

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