fix: Fix typo in DuplicateError error message (#18855)

pola-rs · Sep 23, 2024 · 33f3fa0 · 33f3fa0
1 parent d27fcb3
commit 33f3fa0
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diff --git a/crates/polars-error/src/lib.rs b/crates/polars-error/src/lib.rs
@@ -352,7 +352,7 @@ Alternatively, if the performance cost is acceptable, you could just set:
 on startup."#.trim_start())
     };
     (duplicate = $name:expr) => {
-        polars_err!(Duplicate: "column with name '{}' has more than one occurrences", $name)
+        polars_err!(Duplicate: "column with name '{}' has more than one occurrence", $name)
     };
     (col_not_found = $name:expr) => {
         polars_err!(ColumnNotFound: "{:?} not found", $name)

diff --git a/py-polars/tests/unit/operations/test_pivot.py b/py-polars/tests/unit/operations/test_pivot.py
@@ -466,7 +466,7 @@ def test_pivot_struct() -> None:
 
 def test_duplicate_column_names_which_should_raise_14305() -> None:
     df = pl.DataFrame({"a": [1, 3, 2], "c": ["a", "a", "a"], "d": [7, 8, 9]})
-    with pytest.raises(DuplicateError, match="has more than one occurrences"):
+    with pytest.raises(DuplicateError, match="has more than one occurrence"):
         df.pivot(index="a", on="c", values="d")