{"id":6861,"date":"2018-01-31T11:07:24","date_gmt":"2018-01-31T11:07:24","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=6861"},"modified":"2026-04-13T11:37:46","modified_gmt":"2026-04-13T06:07:46","slug":"python-comment","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/python-comment\/","title":{"rendered":"Python Comment, Indentation and Python Statement"},"content":{"rendered":"

In this Python tutorial, we will review basic syntax- Python Comment, Python indentation, and a Python statement with their subtypes, syntax, and examples.<\/p>\n

So, let’s start learning. Do check the Popular Python Interview Questions from this topic at the end.<\/strong><\/p>\n

Python Statement<\/h3>\n

The Python interpreter deals with statements. The following is a statement in Python.<\/span><\/p>\n

>>> a*=3<\/pre>\n
1. Multiline Python Statement<\/h4>\n
In Python, every statement ends with a newline character. But like we have seen, it is possible to span a statement over multiple lines.<\/p>\n
We do this using the \u2018\\\u2019 character.<\/p>\n
>>> a=\\\r\n\u00a0\u00a0\u00a0 10\\\r\n\u00a0\u00a0\u00a0 +20\r\n>>> a<\/pre>\n
Output<\/strong><\/p>\n
30<\/div>\n
>>> \"Hello\\\r\nhi\"<\/pre>\n
Output<\/strong><\/p>\n
‘Hellohi’<\/strong><\/div>\n
But you can also use a set of parentheses for this.<\/p>\n
>>> a=(\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 10+\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 20)\r\n>>> a<\/pre>\n
Output<\/strong><\/p>\n
30<\/div>\n
>>> type(a)\r\n<class 'int'><\/pre>\n
2. Multiple Python Statements in One Line<\/h4>\n
You can easily put multiple statements in Python on one line.<\/p>\n
>>> a=7; print(a)<\/pre>\n
Output<\/strong><\/p>\n
7<\/div>\n
You can also do this to an if-statement.<\/p>\n
>>> if 2>1: print(\"2\")<\/pre>\n
Output<\/strong><\/p>\n
2<\/div>\n
3. Strings Python Statements<\/h4>\n
To declare strings in Python, you may use single or double quotes.<\/p>\n
>>> \"Hello 'user'\"<\/pre>\n
Output<\/strong><\/p>\n
“Hello ‘user'”<\/div>\n
If you use double quotes outside, use single quotes wherever you need to use a quote inside.<\/p>\n
4. Blank Lines Python Statements<\/h4>\n
The interpreter simply ignores blank lines in Python.<\/p>\n
Python Indentation<\/h3>\n
Unlike C++ or Java<\/strong>, Python does not use curly braces for indentation.<\/p>\n
Instead, Python mandates indentation. At this point, our inner monsters are laughing at the lazy programmers around us.<\/p>\n
>>> if 2>1:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(\"2\")<\/pre>\n
Output<\/strong><\/p>\n
2<\/div>\n
There are no strict rules on what kind of Python indentation you use. But it must be consistent throughout the block.<\/p>\n
Although four whitespaces are usually preferred, and tabs are discouraged.<\/p>\n
Let\u2019s take an example with an inconsistent indentation in Python.<\/p>\n
>>> if 2>1:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 print(\"1\")\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0  print(\"2\")<\/pre>\n
Output<\/strong><\/p>\n
SyntaxError: unexpected indent<\/div>\n
Python Comment<\/h3>\n
Comments in Python are the lines that are ignored by Python while executing the program. Comments are notes for humans; Python skips over them. They explain \u201cwhy\u201d something happens, not \u201cwhat\u201d the code plainly shows.<\/p>\n
    \n
  • They make the code easy to read.<\/li>\n
  • It helps in understanding what work the code is doing.<\/li>\n
  • It makes the complex part of the code easy to understand.<\/li>\n<\/ul>\n
    In C++, we have \/\/ for single-lined comments, and \/* \u2026 *\/ for multiple-lined comments. Here, we only have a single-line Python comment.<\/p>\n
    To declare a Python comment, use the octothorpe (hash) (#).<\/p>\n
    >>> #This is a comment\r\n>>><\/pre>\n
    1. Multiline Python Comment<\/h4>\n
    To have a multiline Python comment in your code, you must use a hash at the beginning of every line of your comment in python.<\/p>\n
    >>> #Line 1 of comment\r\n>>> #Line 2 of comment\r\n>>> #Line 3 of comment<\/pre>\n
    You can also use triple quotes (\u2018\u2019\u2019 \u2018\u2019\u2019 or \u201c\u201d\u201d \u201c\u201d\u201d) for this purpose.<\/p>\n
    >>> \"\"\"This comment\r\nis spanned across\r\nmultiple lines\"\"\"<\/pre>\n
    ‘This comment\\nis spanned across\\nmultiple lines’<\/p>\n
    This gives us an output because we type it in the shell. When you create a file and write this in that, there is no output.<\/p>\n
    While triple quotes are generally used for multiline python comment, we can conveniently use them for Python comments as well.<\/p>\n
    Triple quotes will also preserve formatting.<\/p>\n
    >>> print(\"\"\"Hello\r\nHi\"\"\")<\/pre>\n
    Output<\/strong><\/p>\n
    Hello
    \nHi<\/div>\n
    2. Docstrings Python Comment<\/h4>\n
    A docstring is a documentation string in Python<\/strong>. It is the first statement in a module, function, class, or method in Python<\/strong>.<\/p>\n
    In this, you will learn what a Python function\/class does.<\/p>\n
    >>> def sayhi():\r\n\t\"\"\"\r\n\tThis function prints Hi\r\n\t\"\"\"\r\n\tprint(\"Hi\") \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n>>> sayhi()<\/pre>\n
    Output<\/strong><\/p>\n
    Hi
    \nTo check a function\u2019s docstring, use its __doc__ attribute.<\/p>\n
    >>> def sayhi():\r\n\t\"\"\"\r\n\tThis function prints Hi\r\n\t\"\"\"\r\n\tprint(\"Hi\") \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n>>> sayhi.__doc__<\/pre>\n
    Output<\/strong><\/p>\n
    ‘\\n\\tThis function prints Hi\\n\\t’<\/div>\n
    The interpreter is unable to get the docstring to a function if it isn\u2019t the first thing in the python function<\/strong>.<\/p>\n
    >>> def sayhi():\r\n\tprint(\"Hi\")\r\n\t\"\"\"\r\n\tThis function prints Hi\r\n\t\"\"\" \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\r\n>>> sayhi.__doc__\r\n>>><\/pre>\n
    Python Interview Questions on Python Indentation, Comment and Statement<\/h3>\n
    1. What are the various types of Python Statements?<\/p>\n
    2. How to write comments in Python?<\/p>\n
    3. What is the use of Hash # in Python<\/p>\n
    4. Why do we need proper indentation in Python?<\/p>\n
    5. Write a code explaining the Docstring Python Comment.<\/p>\n
    Conclusion<\/h3>\n
    These three building blocks in Python\u2014statements, indentation, and comments\u2014look small, yet they decide whether your Python script reads like a children\u2019s story or a jumbled puzzle. By mastering them now, you set a solid base for every advanced topic to come, from object-oriented programming to data analysis in Python. Keep your instructions clear, align your blocks with care, and speak to future readers through concise comments. Your code will not just run; it will shine.<\/p>\n","protected":false},"excerpt":{"rendered":"
    In this Python tutorial, we will review basic syntax- Python Comment, Python indentation, and a Python statement with their subtypes, syntax, and examples. So, let’s start learning. Do check the Popular Python Interview Questions...<\/p>\n","protected":false},"author":5,"featured_media":84787,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[2017,2681,6679,8936,10432,10592,10853,15094,15099],"class_list":["post-6861","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-blank-python-statements","tag-comment-in-python","tag-indentation-in-python","tag-multiline-python-statement","tag-python-comment","tag-python-indentation","tag-python-statements","tag-types-of-python-comment","tag-types-of-python-statement"],"yoast_head":"\nPython Comment, Indentation and Python Statement - DataFlair<\/title>\n<meta name=\"description\" content=\"By mastering Python Comment, Indentation & Python statement you set a solid base for every advanced topic to come. 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