display_name has been deprecated since DF42

Author: timsaucer

python/datafusion/expr.py

@@ -27,11 +27,6 @@
 from collections.abc import Iterable, Sequence
 from typing import TYPE_CHECKING, Any, ClassVar
 
-try:
-    from warnings import deprecated  # Python 3.13+
-except ImportError:
-    from typing_extensions import deprecated  # Python 3.12
-
 import pyarrow as pa
 
 from ._internal import expr as expr_internal
@@ -356,16 +351,6 @@ def to_variant(self) -> Any:
         """Convert this expression into a python object if possible."""
         return self.expr.to_variant()
 
-    @deprecated(
-        "display_name() is deprecated. Use :py:meth:`~Expr.schema_name` instead"
-    )
-    def display_name(self) -> str:
-        """Returns the name of this expression as it should appear in a schema.
-
-        This name will not include any CAST expressions.
-        """
-        return self.schema_name()
-
     def schema_name(self) -> str:
         """Returns the name of this expression as it should appear in a schema.
 

python/tests/test_expr.py

@@ -319,27 +319,6 @@ def test_expr_getitem() -> None:
     assert array_values == [2, 5, None, None]
 
 
-def test_display_name_deprecation():
-    import warnings
-
-    expr = col("foo")
-    with warnings.catch_warnings(record=True) as w:
-        # Cause all warnings to always be triggered
-        warnings.simplefilter("always")
-
-        # should trigger warning
-        name = expr.display_name()
-
-        # Verify some things
-        assert len(w) == 1
-        assert issubclass(w[-1].category, DeprecationWarning)
-        assert "deprecated" in str(w[-1].message)
-
-    # returns appropriate result
-    assert name == expr.schema_name()
-    assert name == "foo"
-
-
 @pytest.fixture
 def df():
     ctx = SessionContext()