This tutorial will show you how to accept a sequence of numbers in python. For example, if you want to read a sequence of numbers to find out the average, maximum or minimum value.
In this post, we will write one python program that will take a sequence of numbers from the user and find out the average.
How to get a list of numbers as input in python :
There is no straight-forward way to accept a sequence of numbers from the user. Instead, we can use one loop or we can accept all numbers in one go as comma separated values.
In case of a loop, we will ask the user to enter a number repeatedly and in case of comma separated values, we can read and split the values.
Method 1: By using a loop :
With this method, we will take the total count of numbers first and read them one by one using a loop as like below :
num_list =  total = int(input("Enter total count of numbers :")) for i in range(0, total): num_list.append(int(input("Enter number for index "+str(i)+" : "))) print("Average : ", sum(num_list)/len(num_list))
Sample output :
Enter total count of numbers :3 Enter number for index 0 : 1 Enter number for index 1 : 2 Enter number for index 2 : 3 Average : 2.0 Enter total count of numbers :4 Enter number for index 0 : 1 Enter number for index 1 : 3 Enter number for index 2 : 5 Enter number for index 3 : 9 Average : 4.5
Method 2: Reading all numbers in one go:
Another way to solve it is by taking the numbers as comma separated values. If we read them as comma separated values, we can split them and read them easily :
num_list = list(int(num) for num in input( "Enter the numbers separated by comma :").strip().split(',')) print(sum(num_list)/len(num_list))
What we are doing here :
- Reading all numbers separated by comma
- Removing the extra spaces using stripe()
- splitting the values using split
- Using a for loop, it is converting all values to integer and creates a list
Sample output :
Enter the numbers separated by comma :1,2,3,4,5,6 3.5