[Tutor] Converting string or list to sum

[Danny Yoo]

On Thu, 29 Jan 2004, Iain wrote:

> If I have a sum as a string (e.g. '2+3') or in a list (e.g. [2,'+',3]),
> how can I get the result of the sum?


Hi Iain,



If we had a function that takes three arguments:

    calculate(left_hand_side, operator, right_hand_side)


then we might be able to say something like:

###
>>> calculate(2, '+', 3)
5
>>> calculate(42, '-', 43)
-1
###


Is this the sort of thing that you're asking?



Talk to you later!