Python Comments

In Python, comments are used to explain and document code. They are not executed by the interpreter and are solely for human understanding.
Python supports two types of comments:

1. Single-line Comments

• Begin with a # symbol.

  Anything after # on the same line is considered a comment.

  Copy# This is a single-line comment
  x = 5 # This is an inline comment
  

2. Multi-line Comments

There are no official multi-line comment syntax in Python. Instead, you can use:

• Multiple single-line comments:

  Copy# This is a multi-line comment
  # using multiple single-line comments.
  y = 10
  

• Docstrings (if used for documentation):
  Triple-quoted strings (”’ or “””) can act as multi-line comments when they are not assigned or used as docstrings.

  Copy"""
  This is a multi-line comment
  using triple quotes.
  It can span multiple lines.
  """
  z = 15
  

  Note: Docstrings are typically used for documentation within functions, classes, or modules.
  Best Practices for Writing Comments
  Be clear and concise: Comments should explain why the code exists, not what it does (the code should be self-explanatory).

3. Avoid over-commenting: Comment only when necessary to clarify intent.

• Use meaningful comments: Avoid redundant comments.

  Copy# Bad comment
  x = 10 # Assign 10 to x
  

  Copy# Good comment
  x = 10 # Number of items in the list
  

4. Update comments when the code changes: Outdated comments can be misleading.