def __setitem__(self, key, value):
if not is_hashable(key):
raise TypeError("unhashable type")
for (i, (k, v)) in enumerate(self.contents_):
if k == key:
self.contents_[i] = (k, value)
return
self.contents_.append((key, value))
def __delitem__(self, key):
if not is_hashable(key):
raise TypeError("unhashable type")
for (i, (k, v)) in enumerate(self.contents_):
if k == key:
del self.contents_[i]
return
raise KeyError(key)
def __getitem__(self, key, default=_MISSING):
if not is_hashable(key):
raise TypeError("unhashable type")
for (k, v) in self.contents_:
if k == key:
return v
if default is _MISSING:
raise KeyError(key)
return default
def __getitem__(self, key, default=_MISSING):
if not is_hashable(key):
raise TypeError('unhashable type')
for (i, (k, v)) in enumerate(self.contents_):
if k == key:
return v
if default is _MISSING:
raise KeyError(key)
return default
