def __getitem__(self, key):
if not Gst.tag_exists(key):
raise KeyError
values = []
index = 0
while 1:
value = self._list.get_value_index(key, index)
if value is None:
break
values.append(value)
index += 1
if not values:
raise KeyError
if self._merge:
try:
return " - ".join(values)
except TypeError:
return values[0]
return values
