What is the most elegant and concise way (without creating my own class with operator overloading) to perform tuple arithmetic in Python 2.7?
Lets say I have two tuples:
a = (10, 10)
b = (4, 4)
My intended result is
c = a - b = (6, 6)
I currently use:
c = (a[0] - b[0], a[1] - b[1])
I also tried:
c = tuple([(i - j) for i in a for j in b])
but the result was (6, 6, 6, 6)
. I believe the above works as a nested for loops resulting in 4 iterations and 4 values in the result.
If you're looking for fast, you can use numpy:
>>> import numpy
>>> numpy.subtract((10, 10), (4, 4))
array([6, 6])
and if you want to keep it in a tuple:
>>> tuple(numpy.subtract((10, 10), (4, 4)))
(6, 6)