Python - Unsupported type(s) : range and range

Question

I\'m getting this strange error trying to run a script, the code appears to be correct but it seems python (3) didn\'t liked this part:

        def function(         


        

Answer 1

In the middle of your expression you do range(-30,0) + range(1,30). This is causing the error because in Python 3 range() returns an iterator, not a list like in Python 2.x.

One way to get this to work is to just convert each range to a list before adding:

d = dict([(randrange(101), Racional(coeff(randrange(-20,20)),
                                coeff(choice(list(range(-30,0))+
                                             list(range(1,30))))))
         for k in range(non_nil)])

Since it seems like you want to just exclude 0 from the range(-30, 30), you could also use filter(None, range(-30, 30)).

Alternatively you could use choice((1, -1)) * choice(range(1, 30)), which is equivalent to choice(list(range(-30, 0)) + list(range(1, 30))). (edit: actually the prior expression will not include -30 in the possibilities, not sure whether or not that is an issue).