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+--- Thread: Reading Multiple Lists Using SUM function (/thread-27314.html)
Reading Multiple Lists Using SUM function - dgrunwal - Jun-02-2020
Hello,
Here is the code I am trying to improve - can longer lists be read from a file and looped through and printed?
p8262 = [331, 83, 112, 111, 21, 67, 8]
p8264 = [384, 84, 119, 74, 28, 51, 6]
p8401 = [330, 114, 217, 81, 11, 52, 5]
# variables to be looped
Sum = sum(p8262)
Sum1 = sum(p8264)
Sum2 = sum(p8401)
print("The sum of p8262 is " , Sum)
print("The sum of p8264 is " , Sum1)
print("The sum of p8401 is " , Sum2) All the Best,
Dave
RE: Reading Multiple Lists Using SUM function - Larz60+ - Jun-03-2020
you can do all in one like:
print(f"The sum of p8262 is {sum(p8262)}")
RE: Reading Multiple Lists Using SUM function - dgrunwal - Jun-03-2020
Thanks! That works. Is there a way to read and loop through a file? Have around 300 lists.
RE: Reading Multiple Lists Using SUM function - buran - Jun-03-2020
what is the file - json? show what you have
RE: Reading Multiple Lists Using SUM function - dgrunwal - Jun-03-2020
It's a text file with 259 identical lists like so.
p8262 = [331, 83, 112, 111, 21, 67, 8]
p8264 = [384, 84, 119, 74, 28, 51, 6]
p8401 = [330, 114, 217, 81, 11, 52, 5]
...
print(f"The sum of p8262 is {sum(p8262)}")
Can just the name of the lists be assigned as a variable then I could print out the list name and sum return.
Best
RE: Reading Multiple Lists Using SUM function - buran - Jun-03-2020
this is weird file format.
you can do something like
from ast import literal_eval
with open(path_to_your_file) as f:
for line in f:
name, values = line.split(' = ')
values = literal_eval(values)
print(f"The sum of {name} is {sum(values)}")of course, instead of ast.literal_eval, you can parse the list yourself, i.e. after the split at =, you can remove the brackets, split at comma, convert numbers to int, and so on...
RE: Reading Multiple Lists Using SUM function - dgrunwal - Jun-03-2020
Bingo buran - thanks all, BTW this is the coolest python forum. :)