[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

pysr/sr.py

@@ -1551,9 +1551,9 @@ def get_best(
 
         if index is not None:
             if isinstance(self.equations_, list):
-                assert isinstance(index, list), (
-                    "With multiple output features, index must be a list."
-                )
+                assert isinstance(
+                    index, list
+                ), "With multiple output features, index must be a list."
                 return [eq.iloc[i] for eq, i in zip(self.equations_, index)]
             else:
                 equations_ = cast(pd.DataFrame, self.equations_)