Common Python Errors

SyntaxError: Missing Colon

Beginner • Control Structures

You're writing a simple program to check if a number is positive, but Python won't even run your code. The interpreter is complaining about invalid syntax on your if statement line.

🔍 What you'll see:
Python stops before running and shows "SyntaxError: invalid syntax" pointing to your if statement.

Interactive Code Analysis

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Python Code

            

            

              💡 How to Fix:
              

                Add a colon (:) at the end of the if statement. In Python, compound statements like if, for, while, and function definitions must end with a colon to indicate the start of an indented code block.