Question

I have a string in the following form :

"425x344"

Now I’d like to resolve first and second numbers from this string as two separate variables. How can I do this ? I’ve created this regex:

regex = re.compile(r"^(\d+x\d+)")

to check if the string form is proper. But what next ?

Answer 1

Since you’re filtering it with a regex, you can just do

a, b = map(int, s.split('x'))
res = a * b

If you’re planning on multiplying, it can be done in one line:

res = eval(s.replace('x', '*'))

or

res = (lambda x, y: x * y)(*map(int, s.split('x')))

With an import and one line, this can be done with

import operator

res = operator.mul(*map(int, s.split('x')))

You’ll have to profile them to see which is faster.