You can sum numbers in a list simply with the sum[] built-in:
sum[your_list]
It will sum as many number items as you have. Example:
my_list = range[10, 17]
my_list
[10, 11, 12, 13, 14, 15, 16]
sum[my_list]
91
For your specific case:
For your data convert the numbers into int first and then sum the numbers:
data = ['5', '4', '9']
sum[int[i] for i in data]
18
This will work for undefined number of elements in your list [as long as they are "numbers"]
Thanks for @senderle's comment re conversion in case the data is in string format.
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Given a list of numbers, write a Python program to find the sum of all the elements in the list.
Example:
Input: [12, 15, 3, 10] Output: 40
Input: [17, 5, 3, 5] Output: 30
Example #1:
Python3
total = 0
list1 = [11, 5, 17, 18, 23]
for ele in range[0, len[list1]]:
total = total + list1[ele]
print["Sum of all elements in given list: ", total]
Output
Sum of all elements in given list: 74
Example #2 : Using while[] loop
Python3
total = 0
ele = 0
list1 = [11, 5, 17, 18, 23]
while[ele < len[list1]]:
total = total + list1[ele]
ele += 1
print["Sum of all elements in given list: ", total]
Output:
Sum of all elements in given list: 74
Example #3: Recursive way
Python3
list1 = [11, 5, 17, 18, 23]
def sumOfList[list, size]:
if [size == 0]:
return 0
else:
return list[size - 1] +
sumOfList[list, size - 1]
total = sumOfList[list1, len[list1]]
print["Sum of all elements in given list: ", total]
Output
Sum of all elements in given list: 74
Example #4: Using sum[] method
Python3
list1 =
[11, 5, 17, 18, 23]
total = sum[list1]
print["Sum of all elements in given list: ", total]
Output:
Sum of all elements in given list: 74
Example 5: Using add[] function of operator module
First we have to import the operator module then using the add[] function of operator module adding the all values in the list.
Python3
from operator import*
list1 = [12, 15, 3, 10]
result = 0
for i in list1:
result = add[i, 0]+result
print[result]
Method 6: Using enumerate function
Python3
list1 =
[12, 15, 3, 10];s=0
for i,a in enumerate[list1]:
s+=a
print[s]
Method 7: Using list comprehension
Python3
list1 = [12, 15, 3, 10]
s=[i for
i in list1]
print[sum[s]]
Method 8: Using lambda function
Python3
list1 = [12, 15, 3, 10]
print[sum[list[filter[lambda x: [x],list1]]]]
Method: Using add operator
Python3
import
operator
list1 = [12, 15, 3, 10] ;s=0
for i in list1:
s=s+operator.add[0,i]
print[s]