For Loops

 The for loop

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Def: The for loop is also known as the counting loop and is designed to process the items of any sequence, such as a list or a string, one by one.

General form of for loop:

The general form of the for loop is given below:

    for <variable> in <sequence>:

        statements to repeat

Usability of for loops:

We do not always use the for loop, but only for some particular reasons. These specific reasons include the cases when we need to repeat the same task again and again for a particular range of values. Note that these values may be integers, strings, lists, tuples or even dictionaries.

Example of for loop

Copy the following code from below:

for name in ["Raj","Ashish","Puskar","Aditya"]:
	print(name)

Output:

Raj

Ashish

Puskar

Aditya

For loops containing range() function

For a number based loop or a loop containing some known specific values, we use a range function to determine the start, stop and step-size of the for loop.

Example of for loop containg range() function

#Multiplication Table
print("Enter the number whose table you want to obtain:")
x = int(input())
for i in range(1,11):
    print(x,"*",i,"=",x*i)

Output:

Enter the number whose table you want to obtain:

16

16 * 1 = 16

16 * 2 = 32

16 * 3 = 48

16 * 4 = 64

16 * 5 = 80

16 * 6 = 96

16 * 7 = 112

16 * 8 = 128

16 * 9 = 144

16 * 10 = 160

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