python tuple to dict

Question

For the tuple, t = ((1, \'a\'),(2, \'b\')) dict(t) returns {1: \'a\', 2: \'b\'}

Is there a good way to get {\'a\': 1, \'

Answer 1

If there are multiple values for the same key, the following code will append those values to a list corresponding to their key,

d = dict()
for x,y in t:
    if(d.has_key(y)):
        d[y].append(x)
    else:
        d[y] = [x]