Page 87 - KEC Khaitan C7 Flipbook
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OPERATORS
                 Operators are special symbols that are used to perform specific operation on operands and give

                 a meaningful result. Operands are the data involved in the mathematical operation, and may be
                 stored in variables and constants.
                 Combination of variables, constants and operators makes an expression.



                                           Operator             Operator


                 Expression:       a           +          5         =         20



                                Variable              Constant



                 PUNCTUATORS
                 Punctuators are also called separators as they are used to separate lines of codes, variables, etc.
                 The following characters are used as punctuators in Python: ` # \ () [] {} @ , : . ‘ =

                   Brackets []   indicate list.

                   Parentheses ()   indicate tuples, function calls, function parameters for grouping expressions etc.
                   Comma (,)   is used as a separator in a function argument list or variable declaration.

                   Colon (:)   indicates a labelled statement or conditional operator symbol.
                   Equal sign (=)   is used to initialise the value of variable.




                           DATA TYPES

                 Data types are used to define the type of value a data 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 two categories as shown below:


                                                                    Data Types





                                       Numbers          Sets        Mapping       Sequence       Boolean





                             Integer/long          Float                    String           Lists


                                        Complex                   Dictionary        Tuple




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