add explanatory error message for uint types

rapidsai · Jul 26, 2024 · c7a9cf4 · c7a9cf4
1 parent c9d2843
commit c7a9cf4
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/python/cugraph/cugraph/structure/graph_implementation/simpleGraph.py b/python/cugraph/cugraph/structure/graph_implementation/simpleGraph.py
@@ -255,6 +255,11 @@ def __from_edgelist(
             elif elist[source].dtype not in [np.int32, np.int64] or elist[
                 destination
             ].dtype not in [np.int32, np.int64]:
+                if elist[destination.dtype] in [np.uint32, np.uint64]:
+                    raise ValueError(
+                        "Unsigned integers are not supported as vertex ids."
+                        "  Either convert to signed integers or set renumber=True"
+                    )
                 raise ValueError("set renumber to True for non integer columns ids")
 
         # The dataframe will be symmetrized iff the graph is undirected