09 - WHILE LOOP

In Python, While Loops is used to execute a block of statements repeatedly until a given condition is satisfied.
And when the condition becomes false, the line immediately after the loop in the program is executed. 
While loop falls under the category of indefinite iteration. 
Indefinite iteration means that the number of times the loop is executed isn’t specified explicitly in advance

Syntax:

while expression:
    statement(s)
    
Statements represent all the statements indented by the same number of character spaces after
a programming construct are considered to be part of a single block of code. 
Python uses indentation as its method of grouping statements. When a while loop is executed, 
expr is first evaluated in a Boolean context and if it is true, the loop body is executed. Then the expr is checked again,
if it is still true then the body is executed again and this continues until the expression becomes false.

Example:


# Python program to illustrate 
# while loop 
count = 0
while (count < 3):     
    count = count + 1
    print("CODE HUB") 
  
OUTPUT :
CODE HUB
CODE HUB 
CODE HUB