SyntaxError: Unexpected Indent

Why This Happens

Python uses indentation instead of braces. Every line in a block must have the same indentation. Mixing tabs and spaces or adding extra indentation causes this error.

The Problem

def greet(name):
    print(f'Hello, {name}')
        print('Welcome')

The Fix

def greet(name):
    print(f'Hello, {name}')
    print('Welcome')

Step-by-Step Fix

1. 1

   Check indentation consistency

   All lines in the same block must have identical indentation.

2. 2

   Convert tabs to spaces

   Configure your editor to use 4 spaces. Run python -tt to find mixed tabs/spaces.

3. 3

   Check the previous line

   The line before may need a colon.