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    In the  previous  class, you  have learned what is  Python,  its  features,  how to  install  Python,
                     programming in Python and variable. In this chapter, you will learn about data types, comments,
                     operators and its precedence.

                               DATA TYPES

                     Data types are used to define the type of value a variable can contain. Each variable in Python is
                     associated with some data type. Each data type requires a different amount of memory and has
                     some specific operations performed on it.  Data types are divided into four categories as shown
                     below:

                                                                       Data Types

                                       Numbers                  Sets              Sequence               Boolean

                         Integer/long                Float               String                   List

                                       Complex                                       Tuple

                     NUMBER

                     Integer numbers, floating-point numbers, and complex numbers are the built-in numeric data
                     types of Python.

                     Integer/Long

                     Integers are whole numbers consisting of + or – signs. They do not have decimal places between
                     them. The range of an integer can be from -2147483648 to 2147483647.

                     Float

                     Float data types represent numbers that contain a decimal point. For example, 0.6, -3.257 are
                     called floating-point numbers. These numbers can also be written using ‘e’ or ‘E’ to represent the
                     power 10.

                     Complex

                     A complex is a number that is written in the form a+ bj or a+bJ. It is represented as (real part) +
                     (imaginary part) j.

                     SETS

                     Set is a mutable, unordered collection of values, of any type, with no duplicate element.

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