A Python program to get absolute sum of number strings

The code works for an input of three strings, each on a new line of stdin.

import sys
def isNumber(s):
for i in range(len(s)):
if s[i] == '-':
┆ ┆ try:
┆ ┆ ┆ if not s[i+1].isdigit():
┆ ┆ ┆ ┆ return False
┆ ┆ except Exception:
┆ ┆ ┆ return False
if ord(s[i]) >= 48 and ord(s[i]) <= 57:
┆ ┆ return True
return False
sum = 0
# It reads three input lines from stdin
# and finds cumulative abs sum of only numbers
for i in range(3):
line = sys.stdin.readline()
x = isNumber(line.strip())
print x
if x:
sum += abs(int(line.strip()))
view raw add_only_num.py hosted with ❤ by GitHub

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