{"id":2376,"date":"2026-01-17T11:09:11","date_gmt":"2026-01-17T11:09:11","guid":{"rendered":"https:\/\/demo.materiamedica.net\/demo6\/?p=2376"},"modified":"2026-01-17T11:09:11","modified_gmt":"2026-01-17T11:09:11","slug":"python-comments","status":"publish","type":"post","link":"https:\/\/demo.materiamedica.net\/demo6\/python-comments\/","title":{"rendered":"Python Comments"},"content":{"rendered":"
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1. What are Comments in Python?<\/h2>\n

Comments<\/strong> are notes written inside the code for humans<\/strong>.
Python does not run<\/strong> comments.<\/p>\n

Comments help to:<\/p>\n

    \n
  • \n

    Understand code easily<\/p>\n<\/li>\n

  • \n

    Explain logic<\/p>\n<\/li>\n

  • \n

    Remember code later<\/p>\n<\/li>\n<\/ul>\n

    Simple Example<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # This line prints a message<\/span>
    \nprint<\/span>(\"Hello Python\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    Python runs only:<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    print<\/span>(\"Hello Python\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    2. Single-Line Comments<\/h2>\n

    Single-line comments start with #<\/code>.<\/p>\n

    Example<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # This is a single-line comment<\/span>
    \nprint<\/span>(\"Python is easy\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    You can also write comment after code.<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    print<\/span>(\"Hello\"<\/span>) # This prints Hello<\/span>
    \n<\/code><\/div>\n<\/div>\n

    3. Multi-Line Comments (Docstrings)<\/h2>\n

    Python does not have special multi-line comments,
    but we use triple quotes<\/strong> to write multi-line notes.<\/p>\n

    Example<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    \"\"\"
    \nThis program shows
    \nhow Python comments work
    \n\"\"\"<\/span>
    \nprint<\/span>(\"Welcome\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    These are called docstrings<\/strong>.<\/p>\n

    4. Why Use Comments?<\/h2>\n

    Comments make code:
    \n\u2714 Easy to read
    \u2714 Easy to understand
    \u2714 Easy to fix later<\/p>\n

    Example Without Comment<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    a = 10<\/span>
    \nb = 20<\/span>
    \nprint<\/span>(a + b)
    \n<\/code><\/div>\n<\/div>\n

    Example With Comment<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # Adding two numbers<\/span>
    \na = 10<\/span>
    \nb = 20<\/span>
    \nprint<\/span>(a + b)
    \n<\/code><\/div>\n<\/div>\n

    The second one is better<\/strong>.<\/p>\n

    5. Comments for Explaining Steps<\/h2>\n

    Example<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # Take input from user<\/span>
    \nage = int<\/span>(input<\/span>(\"Enter age: \"<\/span>))<\/p>\n

    # Print next year age<\/span>
    \nprint<\/span>(age + 1<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    6. Comments to Disable Code (Temporary)<\/h2>\n

    Sometimes we don\u2019t want a line to run.<\/p>\n

    Example<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    print<\/span>(\"Start\"<\/span>)
    \n# print(\"This line will not run\")<\/span>
    \nprint<\/span>(\"End\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    Output:<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    Start
    \nEnd
    \n<\/code><\/div>\n<\/div>\n

    7. Good Comment Writing Tips<\/h2>\n

    \u2714 Keep comments short
    \u2714 Write simple English
    \u2714 Explain why<\/strong>, not obvious code<\/p>\n

    Bad Comment<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    x = 10<\/span> # x is 10<\/span>
    \n<\/code><\/div>\n<\/div>\n

    Good Comment<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    x = 10<\/span> # Store default value<\/span>
    \n<\/code><\/div>\n<\/div>\n

    8. Common Beginner Mistakes<\/h2>\n

    \u274c Forgetting #<\/code><\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    This is<\/span> a comment
    \nprint<\/span>(\"Hello\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    \u2714 Correct:<\/p>\n

    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # This is a comment<\/span>
    \nprint<\/span>(\"Hello\"<\/span>)
    \n<\/code><\/div>\n<\/div>\n

    \u274c Writing Too Many Comments<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # Print hello<\/span>
    \nprint<\/span>(\"Hello\"<\/span>) # This prints hello<\/span>
    \n<\/code><\/div>\n<\/div>\n

    One comment is enough \ud83d\ude42<\/p>\n

    9. Simple Practice Examples<\/h2>\n

    Example 1: Commented Program<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # This program prints user name<\/span>
    \nname = input<\/span>(\"Enter your name: \"<\/span>)
    \nprint<\/span>(\"Hello\"<\/span>, name)
    \n<\/code><\/div>\n<\/div>\n

    Example 2: Math with Comments<\/h3>\n
    \n
    \n
    \n
    <\/div>\n<\/div>\n<\/div>\n
    # Take two numbers<\/span>
    \na = 5<\/span>
    \nb = 10<\/span><\/p>\n

    # Print sum<\/span>
    \nprint<\/span>(a + b)
    \n<\/code><\/div>\n<\/div>\n

    10. Summary (Python Comments)<\/h2>\n

    \u2714 Comments are for humans
    \u2714 Python ignores comments
    \u2714 Use #<\/code> for single-line
    \u2714 Use \"\"\" \"\"\"<\/code> for multi-line notes
    \u2714 Comments make code clean<\/p>\n

    \ud83d\udcd8 Perfect for Beginner eBook<\/h3>\n

    This chapter is perfect for:<\/p>\n

      \n
    • \n

      Python beginner books<\/p>\n<\/li>\n

    • \n

      School & college students<\/p>\n<\/li>\n

    • \n

      Self-learners<\/p>\n<\/li>\n<\/ul>\n

      If you want next, I can write:<\/p>\n

        \n
      • \n

        Python Variables (easy)<\/strong><\/p>\n<\/li>\n

      • \n

        Python Input & Output<\/strong><\/p>\n<\/li>\n

      • \n

        if\u2013else statements<\/strong><\/p>\n<\/li>\n

      • \n

        Loops (for, while)<\/strong><\/p>\n<\/li>\n

      • \n

        Bangla + English version<\/strong><\/p>\n<\/li>\n<\/ul>\n

        Just tell me \ud83d\ude0a<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        1. What are Comments in Python? Comments are notes written inside the code for humans.Python does not run comments. Comments help to: Understand code easily Explain logic Remember code later Simple Example # This...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-2376","post","type-post","status-publish","format-standard","hentry","category-python"],"_links":{"self":[{"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/posts\/2376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/comments?post=2376"}],"version-history":[{"count":1,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/posts\/2376\/revisions"}],"predecessor-version":[{"id":2377,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/posts\/2376\/revisions\/2377"}],"wp:attachment":[{"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/media?parent=2376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/categories?post=2376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo.materiamedica.net\/demo6\/wp-json\/wp\/v2\/tags?post=2376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}