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Python range() Function

Float, List, For loop Examples

Do you remember we used the Python range function while learning a loop? Let me remind you of an example.

for i in range(5):
print(i)
python while loop

The range function is used to create a list of numbers on the basis of a number given by the user. The user gives a starting and ending number. If the user only mentions one number as in the above example then 0 is considered as the starting number and the number given by the user is considered as the ending number.

There is a third input that a user can mention while calling the range function named “step”. The step is the increment number. By default, the step is 1. Let’s take a look at examples.

Using Start, Stop and Step in Range

In the table of two, the starting number is 2 ending number is 20 and the step size is 2.

Python range() Function

Let write a python for loop to print this table.

for i in range(2,21,2):
print(i)

The following is the output.

python range

Reverse Range

We can also the range function to create the numbers in reverse order.

Let’s take a look at an example.

for i in range(10,2,-2):
print(i)
Reverse Range

floating numbers in range() function

Python Range function does not accept the float numbers. If you try to use a float number then you will receive a TypeError.

Range function

Creating List using the Range function 

Suppose you need a list of numbers from 1 to 10 or the result of two’s table stored in the list.

Let’s take a look at how to create it.

num = list(range(1,11))
print(num)
two_table = list(range(2,21,2))
print(two_table)
Python range() Function
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