2d dictionary with many keys that will return the same value

Question

I want to make a 2d dictionary with multiple keys per value. I do not want to make a tuple a key. But rather make many keys that will return the same value.

I know ho

Answer 1

Does this help at all?

class MultiDict(dict):
    # define __setitem__ to set multiple keys if the key is iterable
    def __setitem__(self, key, value):
        try:
            # attempt to iterate though items in the key
            for val in key:
                dict.__setitem__(self, val, value)
        except:
            # not iterable (or some other error, but just a demo)
            # just set that key
            dict.__setitem__(self, key, value)



x = MultiDict()

x["a"]=10
x["b","c"] = 20

print x

The output is

{'a': 10, 'c': 20, 'b': 20}