--Originally published at Start in the world of the #TC101
Loops in Think Python
Loops with “for”
Python provides a clean iteration syntax. Note the colon and indentation.
Example
>> for i in range(0, 3):
>> print(i*2)
0
2
4
Loops with “while”
A While loop permits code to execute repeatedly until a certain condition is met. This is useful if the number of iterations required to complete a task is unknown prior to flow entering the loop.
Syntax
while condition:
//do something>> looping_needed = True
>>
>> while looping_needed:
>> # some operation on data
>> if condition:
>> looping_needed = False
