Page 301 - Artificial Intellegence_v2.0_Class_9
P. 301

"Hello"

                       'Python'
                       "I love 'Python'"
                       '''It is
                         an interesting
                         Language'''
                  ✶ Lists: It is a sequence of heterogeneous values arranged as elements and are referred by an index number. These
                 values are separated by comma and are enclosed in square brackets[ ]. They are mutable data types as the values
                 of these data types can be changed by the user after creation. For example,

                       list_of_names=["Amit","Shweta","Peter","Zoya"]
                       Marks=[89,92,93,78,89]
                       class9=[101,"Neha",89.5,102,"Shushil",92]
                  ✶ Tuples:  It  is  a  sequence  of  heterogeneous  values  arranged  as  elements  and  are  referred  by  an  index
                 number. These values are separated by comma and are enclosed in circular brackets ( ). They are immutable
                 as the values of these data types cannot be changed by the user after creation.
               • Boolean: It is a data type with two built-in values: True or False. It is used in logical evaluation. A True value
              represents 1 while a False represents 0.


            Data Type Conversion

            Data of one type can be converted into another type by using type conversion built-in functions like int(),
            float(), str(), etc. The process of converting value of one data type to another is called type conversion or
            type casting. For example,

              >>> float(12)
              12.0

              >>> int(15.5)
              15
              >>> str(12)
                  '12'
              >>> int(True)

                  1
              >>> bool(0)
                  False
            You can get the data type of any object by using type( ) function. For example,

              >>> type(10)
              <class 'int'>
              >>> type("abc")

              <class 'str'>
              >>> type(14.5)
              <class 'float'>






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