PYTHONWarningSyntax ErrorJune 13, 2026

Syntax Error

SyntaxError: invalid syntax for expression (operator expected) on line 5

What This Error Means

A syntax error occurs when Python's interpreter encounters code that violates the language's syntax rules. In this case, the error is due to a missing colon (:) in a conditional statement.

Why It Happens

This error typically happens when there's a mistake in the structure of a control flow statement, such as if, elif, else, for, or while. The colon is used to separate the condition from the code block. Missing or misplaced colons can cause Python to raise a SyntaxError.

How to Fix It

  1. 1To fix this error, ensure that each control flow statement has the correct syntax. In this case, add a colon after the condition in the if statement. For example:
  2. 2if condition:
  3. 3 # code block

Example Code Solution

❌ Before (problematic code)
Python
if True
    print('Hello, world!')
✅ After (fixed code)
Python
if True:
    print('Hello, world!')

Fix for SyntaxError: invalid syntax for expression (operator expected) on line 5

Related PYTHON Errors

Related PYTHON Blog Articles

Have a different error? Get an instant explanation.

Explain Another Error