Flow of Control — Chapter Summary

The order of execution of statements

The order of execution of statements in a program is called flow of control. It describes how control moves from one statement to another.

Decision making in programming is implemented

Decision making in programming is implemented using the if..else statement. It chooses one path among alternatives based on a condition.

if condition

if condition: statement(s) A block under if runs only when the condition is true. There is no limit on the number of statements in the block.

if condition

if condition: statement(s) else: statement(s) It gives two alternative paths depending on whether the condition is true or false.

elif stands for else

elif stands for else..if and is used to chain multiple conditions. If one elif condition is true, its block executes and the if statement terminates.