How to use while statement to create a loop in Python
while statement
The while loop statement repeats a block of code based on a condition. If the condition is true it will continue to loop until the condition is false.
x = 1
while x <= 10:
print x
x += 1
The code above generates the following result.
You could also use a loop to ensure that the user enters a name, as follows:
name = ''
while not name:
name = raw_input('Please enter your name: ')
print 'Hello, %s!' % name
The code above generates the following result.
else Statement
y = 8# w w w. ja v a2 s. c o m
x = y / 2 # For some y > 1
while x > 1:
if y % x == 0: # Remainder
print y, 'has factor', x
break # Skip else
x = x-1
else: # Normal exit
print y, 'is prime'
The code above generates the following result.
