use collections.abc

b_asic/operation.py

@@ -285,7 +285,7 @@ class AbstractOperation(Operation, AbstractGraphComponent):
         if result is not None:
             return result
         values = self.evaluate(*self._truncate_inputs(input_values))
-        if isinstance(values, collections.Sequence):
+        if isinstance(values, collections.abc.Sequence):
             if len(values) != self.output_count:
                 raise RuntimeError(f"Operation evaluated to incorrect number of outputs (expected {self.output_count}, got {len(values)})")
         elif isinstance(values, Number):