{"id":3324,"date":"2021-03-26T13:57:39","date_gmt":"2021-03-26T08:27:39","guid":{"rendered":"https:\/\/blog.guvi.in\/?p=3324"},"modified":"2025-10-22T17:39:14","modified_gmt":"2025-10-22T12:09:14","slug":"do-you-know-how-to-create-variables-in-python","status":"publish","type":"post","link":"https:\/\/www.guvi.in\/blog\/do-you-know-how-to-create-variables-in-python\/","title":{"rendered":"Do You Know How To Create Variables In Python?"},"content":{"rendered":"\n

How to create variables in Python? Give examples<\/strong>? <\/mark><\/p>\n\n\n\n

This is a popular question that we often come across from Python beginners<\/a>. <\/mark><\/p>\n\n\n\n

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\"\"<\/figure>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

Python<\/a> offers a controlled information kind of record as a real language. Firstly, the name \u201cvariable<\/em><\/strong>\u201d suggests something that can easily be changed<\/em><\/strong>.<\/em> The variable considers a method alluding to the specific memory location used by the PC programs.\u00a0<\/mark><\/p>\n\n\n\n

The<\/mark> name of the variable can be emblematic that is specified to any physical area. Therefore, it is noticeable that variables play an important role in Python. H<\/mark>ence, it becomes necessary to know how to create variables in Python.<\/strong><\/mark><\/p>\n\n\n\n

But before proceeding to the details, let\u2019s take an overview of what <\/mark>are variables in Python. This will help the beginners to understand the variables efficiently.\u00a0<\/mark>Alternatively, if you would like to explore Python through a Self-paced course, try HCL GUVI\u2019s Python Self-Paced certification course<\/a><\/strong>.<\/p>\n\n\n\n

What are the variables in Python?<\/span><\/strong><\/h3>\n\n\n\n

A python variable is all about reserving the memory location that can easily store the values. In simple words, a variable in Python programs provides the data to a computer to process it effectively.\u00a0<\/mark><\/p>\n\n\n\n

Data types in Python:<\/span><\/strong><\/p>\n\n\n\n

Each value present in Python has a specific data type, and each data type can be a List, String, Number, Tuple, Dictionary,<\/a> and so on. The variable in Python can be declared as a name or an alphabet such as b, bb, abc, and so on.<\/mark><\/p>\n\n\n\n

Example of types of Variable in Python<\/span><\/strong><\/h4>\n\n\n\n
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X = 50<\/mark><\/p>\n\n\n\n

Variable <\/em><\/strong><\/mark><\/p>\n\n\n\n

Type = Integer<\/mark><\/p>\n\n\n\n

Value = 50<\/mark><\/p>\n\n\n\n

Name = X<\/mark><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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Name = \u2018ABC\u2019<\/mark><\/p>\n\n\n\n

Variable<\/strong><\/em><\/mark><\/p>\n\n\n\n

Type = String<\/mark><\/p>\n\n\n\n

Value = ABC<\/mark><\/p>\n\n\n\n

Name = ‘Name<\/mark>‘<\/p>\n<\/div><\/div>\n\n\n\n

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num = [ 5,9.5, 10 ]<\/mark><\/p>\n\n\n\n

Variable<\/em><\/strong> <\/mark><\/p>\n\n\n\n

Type = List<\/mark><\/p>\n\n\n\n

Value = [ 5, 9.5, 10 ]<\/mark><\/p>\n\n\n\n

Name = Num<\/mark><\/p>\n<\/div><\/div>\n\n\n\n

Data types are the categories and classifications of different data items. And it is used to represent the values that help you know operations that have been performed over specific data.\u00a0<\/mark><\/p>\n\n\n\n

As we know, each thing in Python is considered an object, so data types are variables and classes of the specific classes.<\/mark><\/p>\n\n\n\n

Below are built-in or standard data types in Python:<\/mark><\/p>\n\n\n\n

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  • Dictionary<\/li>\n\n\n\n
  • Numeric<\/li>\n\n\n\n
  • Sequence Type<\/li>\n\n\n\n
  • Boolean<\/li>\n\n\n\n
  • Set<\/li>\n<\/ul>\n\n\n\n

    Create a Dictionary using the Integer Keys <\/span><\/strong><\/h4>\n\n\n\n
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    \"dictionary<\/figure><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n

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    Output<\/strong><\/mark><\/p>\n\n\n\n

    Dictionary using Integer Keys:  {1: ‘p’, 2: ‘q’, 3: ‘r’}<\/span><\/strong><\/p>\n\n\n\n

    Numeric<\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n

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    \"\"<\/figure><\/div>\n\n\n

    <\/p>\n\n\n\n

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    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    Output<\/span><\/strong><\/p>\n\n\n\n

    Number data:  456<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    Sequence Type <\/span><\/strong><\/h4>\n<\/div><\/div>\n\n\n\n
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    \"\"<\/figure><\/div>\n\n\n

    <\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    A string that has Single Quotes: <\/strong><\/p>\n\n\n\n

    Hello World<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    Boolean<\/span><\/strong><\/h4>\n<\/div><\/div>\n\n\n\n
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    <\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    <class ‘bool’><\/span><\/strong><\/p>\n\n\n\n

    <class ‘bool’><\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    Create a Set using String <\/span><\/strong><\/h3>\n\n\n\n
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    \"\"<\/figure><\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    Set using String: <\/strong><\/p>\n\n\n\n

    {‘A’, ‘B’, ‘C’}<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    NOTE: <\/strong>The list is used to represent the order sequence of the particular object with integer indices.<\/mark> So, a list is more suitable to use where you have some doubt about which variable is created for the particular value. Example:<\/em><\/strong><\/mark><\/p>\n\n\n\n

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    <\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output:<\/span><\/strong><\/p>\n\n\n\n

    BALL<\/span><\/strong><\/p>\n\n\n\n

    [‘APPLE’, ‘BALL’, ‘CAT’, ‘DOG’]<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    It has been seen that list is a more convenient method than a dict for ordered sequences as list support iterations in the index order.<\/mark><\/p>\n\n\n\n

    Key points about Variable in Python<\/em><\/strong>
    A variable is just a name given to a memory location; the variable’s operations will affect the memory location. 
    The value that is stored in the variable can be altered at the time of program execution.<\/span><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    How to use variable key names to get the effect of variable variables in Python?<\/span><\/strong><\/h3>\n\n\n\n

    To create the variable variables in Python, the user can use dictionaries to store the values with the keys. Remember: <\/em><\/strong>\u00a0it is also possible to delete any of the keys: value pairs using the del.\u00a0<\/em><\/strong><\/mark><\/p>\n\n\n\n

    If you store a value with the help of a key, which is already in use, then the previous value of that key will be replaced with the new value or forgotten. So, let’s check the effect of variables variable in Python.<\/mark><\/p>\n\n\n\n

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    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    {‘Enna’: 1234, ‘Jack’: 1478, ‘Tina’: 5678}<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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    \"\"<\/figure><\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    {‘Enna’: 7531, ‘Tina’: 5678}<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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    \"\"<\/figure><\/div><\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n
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    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    1234<\/span><\/strong><\/p>\n\n\n\n

    {\u2018Enna\u2019:1234, \u2018Tina:5678, \u2018Jack\u2019:\u20191478}<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

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    \"\"<\/figure><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

    <\/p>\n\n\n\n

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    Output<\/span><\/strong><\/p>\n\n\n\n

    {\u2018Tina\u2019:5678, \u2018Jack\u2019:1478}<\/span><\/strong><\/p>\n<\/div><\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

    Is there any rule for creating variables in Python?<\/span><\/strong><\/h3>\n\n\n\n

    Yes<\/em><\/strong>, there are certain rules that users need to follow for creating a variable in Python. And the rules are as follows:<\/mark><\/p>\n\n\n\n

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    • The variable’s name must start with an underscore character or a letter.<\/mark><\/li>\n<\/ul>\n\n\n\n
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      • A number can not be used at the starting of the variable name.<\/mark><\/li>\n<\/ul>\n\n\n\n