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CONDITIONAL


                    09                                                 STATEMENTS IN PYTHON














                                       Your Aim

                                       to learn about:

                                              Decision Making Statements       The if Statement
                                               The if…else Statement             Nested if Statement
                                                The if…elif…else Ladder

                  There  are  situations  in life where  we  must make decisions based  on  the  circumstances.  For

                  example, if it rains, we will stay at home, or else we will visit the market. Similar situations arise
                  in programming as well, where we need to make some decisions and, based on these decisions,
                  execute a set of commands. Whether the outcome is true or false, we must decide which action to
                  take and which statement to execute. In this chapter, we will learn about conditional statements
                  in Python.

                      DECISION MAKING STATEMENTS
                                                                                               Start
                  Conditional statements, also known  as decision-making or
                  control flow statements, are used in programming to execute
                                                                                                               False
                  different  blocks of code based on certain  conditions. The               if condition

                  following Decision Making Statements are available in Python:
                                                                                                  True
                      if statement
                                                                                       Statements in if block
                      if...else statement                                                    execute

                      Nested if statement
                                                                                               Stop
                      if…elif…else ladder
                      THE IF STATEMENT

                  The if statement is the simplest conditional statement. In case of the if statement, a statement or
                  a collection of statements within the if block is executed only if a certain condition or expression
                  evaluates to True. If the condition evaluates to False, then the control of execution is passed to
                  the next statement after the if block. The syntax of the if statement is given below:

                  Syntax:

                  if (Test Expression):

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