Comments are crucial in programming as they help explain and clarify the code to users and your future self. They are used to annotate parts of the code with notes or explanations and are not executed as part of the program. Python supports several types of comments:

• single-line
• multi-line

Each serves different purposes, as we'll explore below.

Single-line Comments

Single-line comments are used to comment out a small piece of information or annotate a line of code. You can use # symbol to add single line comment in the python code.

Example

Explanation:

• The # symbol marks the start of a comment. Python will ignore the text following the # on the same line. This allows you to write notes or disable code temporarily.
• In the first line, the comment is used to describe the purpose of the code.
• The second line includes a comment right after the code, explaining what that specific line of code does.

Multi-line Comments

Python does not have a specific multi-line comment feature like some other languages do, but you can use consecutive single-line comments or a multi-line string (using triple quotes) that isn't assigned to a variable.

Example

Explanation:

• The first two lines show consecutive single-line comments, each starting with #.
• The block enclosed in triple quotes (""") is technically a multi-line string, but when not assigned to a variable or used in a function or class, it acts like a comment. Python will read these lines but not execute them, similar to comments.

By using comments effectively, you can make your code much easier to understand and maintain. Whether it’s a simple script or a complex project, well-commented code can save time and effort for anyone who might need to read or modify it in the future.