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We can iterate through a set of things such as a list of words, the lines in a file, or a list of numbers. When we have a list of things to loop through, we can construct a definite loop using a
for statement. We call the
while statement an indefinite loop because it simply loops until some condition becomes
False, whereas the
for loop is looping through a known set of items so it runs through as many iterations as there are items in the set.
The syntax of a
for loop is similar to the
while loop in that there is a for statement and a loop body:
numbers = [1,2,3,4,5] for number in numbers: print number
Suppose there is a list of numbers from 1 to 5 stored in the variable
numbers. (Do not worry, we will cover list data type later). Then, we iterate over all the elements of the list and print each of the element. We can do any operation over the elements depending upon the requirement.
Generic Loop process:
You can try executing the previous exercises using
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