def __len__(self):
if self.data:
return {k: len(v)
for k, v in self.data.items()} if is_dict__(
self.data) else len(self.data)
else:
return 0
def __len__(self):
if self.indices:
return {k: self._len(v)
for k, v in self.indices.items()} if is_dict__(
self.indices) else self._len(self.indices)
else:
raise RuntimeError(
'index the data first; otherwise the length is not available')
def _index(self, indexer: IndexDict):
first = indexer.index_all(self.data[0])
if is_dict__(first):
return sum((indexer.index_all(x) for x in self.data[1:]), first)
else:
return [first] + [indexer.index_all(x) for x in self.data[1:]]
def _index(self, indexer):
indices = [indexer.index(x) for x in self.data]
return sum(indices, ListDict()) if is_dict__(indices[0]) else indices