poetry update + bugfix (#467)

* poetry update + bugfix

* bugfix

tests/integration_tests/test_list_deps.py

@@ -0,0 +1,35 @@
+"""Test for [NodeAttribute] as 'zn.deps'."""
+from zntrack import Node, zn
+
+
+class GenerateOutput(Node):
+    """Generate an output."""
+
+    inputs: int = zn.params()
+    output: int = zn.outs()
+
+    def run(self):
+        self.output = self.inputs
+
+
+class SumNumbers(Node):
+    """Sum a list of numbers."""
+
+    inputs: list = zn.deps()
+    shift: int = zn.params()
+    output: int = zn.outs()
+
+    def run(self):
+        self.output = sum(self.inputs)
+
+
+def test_list_deps(proj_path):
+    node1 = GenerateOutput(inputs=1, name="node1")
+    node2 = GenerateOutput(inputs=1, name="node2")
+
+    data = [node1 @ "output", node2 @ "output"]
+    node3 = SumNumbers(inputs=data, shift=10)
+
+    node1.write_graph()
+    node2.write_graph()
+    node3.write_graph()

zntrack/core/base.py

@@ -273,11 +273,30 @@ def __repr__(self):
         )
 
     def __hash__(self):
-        """compute the hash based on the parameters and node_name."""
-        params_dict = self.zntrack.collect(zn_params)
-        params_dict["node_name"] = self.node_name
+        """compute the hash based on the parameters and node_name.
 
-        return hash(json.dumps(params_dict, sort_keys=True, cls=znjson.ZnEncoder))
+        Ignore 'not serializable' here so it will not raise an error.
+
+        Returns
+        -------
+        hash value based on the parameters and node_name. If there are some errors,
+        during the collection of the parameters, it will return super hash.
+
+        """
+        try:
+            params_dict = self.zntrack.collect(zn_params)
+            params_dict["node_name"] = self.node_name
+
+            return hash(
+                json.dumps(
+                    params_dict,
+                    sort_keys=True,
+                    cls=znjson.ZnEncoder,
+                    default=lambda o: "<not serializable>",
+                )
+            )
+        except utils.exceptions.GraphNotAvailableError:
+            return super().__hash__()
 
     def __matmul__(self, other: str) -> typing.Union[NodeAttribute, typing.Any]:
         """Shorthand for: getdeps(Node, other).