3dz Soft

If you need to get the key of an item from a Dictionary in Python, supposing that the items are unique, here’s an easy way to do it:

def find_key(dic, val):
 """return the key of dictionary dic given the value"""
 return [k for k, v in dic.iteritems() if v == val][0]

where dic is the dictionary, and val is the value for  whose key you are looking for.