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Python for Beginners - Python Indentation

 Python Indentation

In Python, indentation plays a crucial role in determining the scope and organization of code blocks. Python uses whitespace indentation to delimit blocks of code, rather than curly braces ({}) or similar constructs used in other programming languages.


Here are some basic rules to keep in mind when it comes to indentation in Python:

  • Use consistent indentation throughout your code.
  • Indent your code with four spaces (not tabs).
  • Indentation level should be consistent for all statements within a block of code.
  • Indentation should be used to indicate the scope of a block of code, such as within a function definition, loop or conditional statement.
  • Be careful not to mix tabs and spaces in your code, as this can cause indentation errors.

Here are a few examples to illustrate how indentation works in Python:


Example 1: If-else statement



In the correct example, the if and else statements are indented to the same level to indicate they are part of the same block of code. In the incorrect example, the indentation of the print statements is inconsistent, which will result in a syntax error.


Example 2: For loop




In the correct example, the print statement is indented within the for loop block, while in the incorrect example, it is not, which will cause a syntax error.


Overall, indentation in Python is a powerful and useful way to organize code and clarify the structure of your programs. It's important to pay attention to your indentation and make sure it is consistent and used appropriately.

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