In general, **even numbers** are those numbers that are divisible by 2. So you have to implement this logic inside the iteration to check whether the number is even or not then add it to get the Sum of n even numbers in Python using a while loop.

**Sum of n even numbers in Python using while loop**

Simple example code.

```
my_list = [2, 4, 6, 8]
count = len(my_list) - 1
sum = 0
while count >= 0:
if my_list[count] % 2 == 0:
sum = sum + my_list[count]
count = count - 1
print("While loop Sum", sum)
```

**Output**:

Python program allows the user to enter the maximum limit value. Next, Python is going to calculate the sum of even numbers from 1 to that user-entered value.

```
maximum = int(input(" Please Enter the Maximum Value : "))
total = 0
number = 1
while number <= maximum:
if(number % 2 == 0):
print("{0}".format(number))
total = total + number
number = number + 1
print("The Sum of Even Numbers from 1 to N = {0}".format(total))
```

**Output**:

```
Please Enter the Maximum Value : 10
2
4
6
8
10
The Sum of Even Numbers from 1 to N = 30
```

Do comment if you have any doubts or suggestions on this Python list topic.

Note:IDE: PyCharm 2021.3.3 (Community Edition)Windows 10

Python 3.10.1All

Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

Degree in Computer Science and Engineer: App Developer and has multiple Programming languages experience. Enthusiasm for technology & like learning technical.