Pythondex

Tutorial

Python Comments

In Python, comments are used to leave notes or explanations in your code. They are ignored by Python when your program runs.

Why Use Comments?

  • Explain what your code does so others can understand it.
  • Help yourself remember why you wrote certain code.
  • Python ignores comments when running your program.

Single-line Comments

A single-line comment starts with the # symbol. Anything after # on that line is a comment.

Example

When you run the code above, Python will only execute the print() line. The comments are ignored.

Multi-line Comments

For longer comments spanning multiple lines, you can use triple quotes """ """.

Example

Python ignores everything inside the triple quotes if it's not assigned to a variable. Only the print() line will run.