fix[python]: dispatch logical type arithmetic to series (#4929)

py-polars/polars/internals/series/series.py

@@ -414,6 +414,11 @@ def __le__(self, other: Any) -> Series:
     def _arithmetic(self, other: Any, op_s: str, op_ffi: str) -> Series:
         if isinstance(other, Series):
             return wrap_s(getattr(self._s, op_s)(other._s))
+        # we recurse and the if statement above will
+        # ensure we return early
+        if isinstance(other, (date, datetime, timedelta, str)):
+            other = Series("", [other])
+            return self._arithmetic(other, op_s, op_ffi)
         if isinstance(other, float) and not self.is_float():
             _s = sequence_to_pyseries("", [other])
             if "rhs" in op_ffi:

py-polars/tests/unit/test_arithmetic.py

@@ -1,3 +1,5 @@
+from datetime import date
+
 import polars as pl
 
 
@@ -11,3 +13,7 @@ def test_sqrt_neg_inf() -> None:
     assert str(out["sqrt"].to_list()) == str(
         [float("NaN"), float("NaN"), 0.0, 3.0, float("Inf")]
     )
+
+
+def test_arithmetic_with_logical_on_series_4920() -> None:
+    assert (pl.Series([date(2022, 6, 3)]) - date(2022, 1, 1)).dtype == pl.Duration("ms")