This is a better version of the class that I sen't you, now it raises a
KeyError when you try to insert a value that is already in
############################
class MyCoolDictionary(dict):
def __init__(self, *args, **kargs):
dict.__init__(self, *args, **kargs)
def __setitem__(self, *args, **kargs):
for i in dictio.values():
if args[0]==i or args[1]==i:
raise KeyError, 'Value already exists'
dict.__setitem__(self, *args, **kargs)
def __getitem__(self, item):
try:
return dict.__getitem__(self, item)
except KeyError:
keys=[]
for i in dictio.keys():
if dictio[i]==item:
keys.append(i)
if not keys:
raise KeyError, 'Can\'t found key or value "' + str(item) +
'"'
return keys
############################
Feel free to change anything you want or need
Regards,
Akathorn Greyhat
2008/7/14 Kless <[EMAIL PROTECTED]>:
> I need a dictionary where get the result from a 'key' (on left), but
> also from a 'value' (on right), how to get it?
>
> I know that dictionaries aren't bidirectional, but is there any way
> without use two dictionaries?
>
>
> Thanks in advance!
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> http://mail.python.org/mailman/listinfo/python-list
>
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