Dynamic comparison operators

[Alain Ketterlin]

mlangenhoven at gmail.com writes:

> I would like to pass something like this into a function
> test(val1,val2,'>=')
>
> and it should come back with True or False.

def test(x,y,c):
    return c(x,y)

Call with: test(v1,v2, lambda x,y:x<=y ). A bit noisy imho.

If you have a finite number of comparison operators, put them in a dict:

compares = dict([ ("<",lambda x,y:x<y),
                  ("|<",lambda x,y: x.startswith(y)),
                  ... ])

and use them like: test(v1,v2,compares["<="]), or simply:
compares["<="](v1,v2)

-- Alain.