def deduplicate(self, how='last'):
""" ...
NOTE: this method is equivalent to deduplicate_last by default. """
if how == 'first':
pass
elif how == 'last':
return self.deduplicate_last()
else:
raise ValueError("Unknown deduplication `how`: %r" % (how,))
self._data_checked = tuple(uniq_g(self._data, key=lambda item: item[0]))
def deduplicate_last(self):
data_pre = uniq_g(reversed(self._data), key=lambda item: item[0])
data_pre = list(data_pre)
self._data_checked = tuple(reversed(data_pre))
