How may I call this function

Question

How may I call this function ?

Would you help me regarding the code ?

https://code.sololearn.com/cPD2EdCuw5pa/?ref=app

Answer 1

_sum_of_a_2d_list_sample_(values)

Answer 2

A 2d list is a table, name your function sum_of_a_table(table).
I prefer to make the names of things in my code short and simple, for example: tableSum or table_sum

Answer 3

with calling in this way:

sample_2d_list = [

["david",18,19,20],
["hasan",12,8,18],
["parisa",12,14,15]

]

print (_sum_of_a_2d_list_sample_(sample_2d_list))

I was received ERROR

Just now I fpund solution, I removed strings and it was runned