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add __len__ to CombinedConnection #127

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merged 1 commit into from
Dec 16, 2024
Merged

add __len__ to CombinedConnection #127

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1 change: 1 addition & 0 deletions tests/test_add_connections.py
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ def test_AddLists(use_graph):
outs = AddOne(lst1.outs + lst2.outs)

assert isinstance(outs.value, CombinedConnections)
assert len(outs.value) == 2
assert len(outs.value.connections) == 2
assert outs.value.connections[0].instance is lst1
assert outs.value.connections[0].attribute == "outs"
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3 changes: 3 additions & 0 deletions znflow/base.py
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Expand Up @@ -331,6 +331,9 @@ def __radd__(self, other):
def __getitem__(self, item):
return dataclasses.replace(self, item=item)

def __len__(self) -> int:
return len(self.connections)

def __iter__(self):
raise TypeError(f"Can not iterate over {self}.")

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