def __getitem__(self, key):
try:
return PersistentMapping.__getitem__(self, key)
except KeyError:
if type(key) == type(0):
return self.get_list()[key]
if type(key) == type(""):
keys = self.keys()
l = self.__class__()
# first check if key can be found in start of key-strings
shortened_keys = map(lambda x: (x, x[:len(key)]), keys)
for k, sk in shortened_keys:
if key == sk:
l[k] = self[k]
if len(l) == 0:
# then check if it can be found anywhere
for k in keys:
if k.find(key) > -1:
l[k] = self[k]
# return either 1 object or list of objects
if len(l) == 1:
return l[0]
if l:
return l
# key not found, so
raise KeyError
