Python - Result from two list with a list of operators [duplicate]

Question

I am trying to get the result of two lists depending on the operator in another separate column in Python.

Here is my code

up = ["123", "1", "7685", "9987"]
down = ["45", "46", "435", "2"]
op = ["+", "-", "+", "*"]

for u, d, o in zip(up, down, op):
    #print(u, o, d)
    #print(int(u) + int(d))
    print(int(u), o , int(d))

I can print out but what I want is to get the results. This is the output I am looking for.

168 -45 8120 19,974

Append to a list?

yatu
– yatu

2020-07-06 12:46:06 +00:00
Commented Jul 6, 2020 at 12:46 — yatu
– yatu, Commented Jul 6, 2020 at 12:46

Sercan · Accepted Answer · 2020-07-06 12:50:20Z

2

You need to use eval() method to evaluate any string as math expression:

up = ["123", "1", "7685", "9987"]
down = ["45", "46", "435", "2"]
op = ["+", "-", "+", "*"]

for u, d, o in zip(up, down, op):
    print(eval(u + o + d))

Related doc page is here.

answered Jul 6, 2020 at 12:50

Sercan

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1 Comment

sushanth Over a year ago

eval is evil

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Python - Result from two list with a list of operators [duplicate]

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