toposort frozenset workaround (#7793)

dagster-io · May 9, 2022 · 742ba2b · 742ba2b
1 parent 8cfa136
commit 742ba2b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/python_modules/dagster/dagster/core/utils.py b/python_modules/dagster/dagster/core/utils.py
@@ -49,6 +49,8 @@ def coerce_valid_log_level(log_level: Union[str, int]) -> int:
 
 
 def toposort(data):
+    # Workaround a bug in older versions of toposort that choke on frozenset
+    data = {k: set(v) if isinstance(v, frozenset) else v for k, v in data.items()}
     return [sorted(list(level)) for level in toposort_.toposort(data)]