.. DO NOT EDIT.
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.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/oop/class.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        Click :ref:`here <sphx_glr_download_auto_examples_oop_class.py>`
        to download the full example code or to run this example in your browser via Binder

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_oop_class.py:


===================
3.2 creating class
===================

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A class in python can be considered as a collection of functions which share
some data (attributes). However, a class need not to have functions in it i.e. it can
only consist of attributes.

We can define a minimal class as follows

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.. code-block:: default


    class Insan:
        pass








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A ``class`` definition consists of two parts:

   * header: keyword ``class`` and name of class and then listing of other classes from which this class inherits i.e. superclasses. 3rd argument is optional.
   * body: indented statements, Above we have only one statement i.e. ``pass``.

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Using classes
--------------
To use a class, we first have to initiate or instantiate it. This is done by 
calling the class as if it were a function. For example, we can create an 
object of ``Insan`` class as follows

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.. code-block:: default


    ali = Insan()
    husain = Insan()








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Above we have created two objects which are called instances of a class.
`ali` and `husain` are instances of `Insan` class.
If we check the type of these instances we can confirm it.

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.. code-block:: default


    type(ali), type(husain)





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    (<class '__main__.Insan'>, <class '__main__.Insan'>)



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.. code-block:: default


    shabir = husain








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.. code-block:: default


    print(husain == shabir)





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    True




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.. code-block:: default


    print(husain == ali)





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 .. code-block:: none

    False




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So `husain` and `ali` are different although they are instances of
same class. They are different because they are different instances of the `Insan` class.


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.. _sphx_glr_download_auto_examples_oop_class.py:

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