From dddcb83a074e7f0088565cf591fab72be4b64215 Mon Sep 17 00:00:00 2001
From: zhangbowen-coder <2439796518@qq.com>
Date: Thu, 11 Dec 2025 12:15:28 +0800
Subject: [PATCH 1/4] Add support for operator &  in class Expression.

---
 pandas/core/col.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pandas/core/col.py b/pandas/core/col.py
index 39c4a7fd016c2..be90658ed54ba 100644
--- a/pandas/core/col.py
+++ b/pandas/core/col.py
@@ -37,6 +37,8 @@
     "__lt__": "<",
     "__eq__": "==",
     "__ne__": "!=",
+    "__and__" : "&",
+    "__rand__" : "&",
 }
 
 
@@ -156,6 +158,10 @@ def __mod__(self, other: Any) -> Expression:
 
     def __rmod__(self, other: Any) -> Expression:
         return self._with_binary_op("__rmod__", other)
+    def __and__(self, other: Any) -> Expression:
+        return self._with_binary_op("__and__", other)
+    def __rand__(self, other: Any) -> Expression:
+        return self._with_binary_op("__rand__", other)
 
     def __array_ufunc__(
         self, ufunc: Callable[..., Any], method: str, *inputs: Any, **kwargs: Any

From fb6415ddd4231ab6a7a4e0993471d20f5d139dd6 Mon Sep 17 00:00:00 2001
From: zhangbowen-coder <2439796518@qq.com>
Date: Thu, 11 Dec 2025 13:28:27 +0800
Subject: [PATCH 2/4] update

---
 pandas/core/col.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pandas/core/col.py b/pandas/core/col.py
index be90658ed54ba..814b714bdbe2f 100644
--- a/pandas/core/col.py
+++ b/pandas/core/col.py
@@ -37,8 +37,8 @@
     "__lt__": "<",
     "__eq__": "==",
     "__ne__": "!=",
-    "__and__" : "&",
-    "__rand__" : "&",
+    "__and__": "&",
+    "__rand__": "&",
 }
 
 
@@ -158,8 +158,10 @@ def __mod__(self, other: Any) -> Expression:
 
     def __rmod__(self, other: Any) -> Expression:
         return self._with_binary_op("__rmod__", other)
+
     def __and__(self, other: Any) -> Expression:
         return self._with_binary_op("__and__", other)
+
     def __rand__(self, other: Any) -> Expression:
         return self._with_binary_op("__rand__", other)
 

From 0319203c23314b94e7077fa36da219d328cc8b10 Mon Sep 17 00:00:00 2001
From: zhangbowen-coder <2439796518@qq.com>
Date: Sat, 13 Dec 2025 21:37:34 +0800
Subject: [PATCH 3/4] Tests added.

---
 pandas/tests/test_col.py | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/pandas/tests/test_col.py b/pandas/tests/test_col.py
index c884540abfed0..6883532432465 100644
--- a/pandas/tests/test_col.py
+++ b/pandas/tests/test_col.py
@@ -46,6 +46,36 @@ def test_col_simple(
     assert str(expr) == expected_str
 
 
+@pytest.mark.parametrize(
+    ("expr", "expected_values", "expected_str"),
+    [
+        (
+            (pd.col("a") >= 3) & (pd.col("a") <= 5),
+            [3, 4, 5],
+            "((col('a') >= 3) & (col('a') <= 5))",
+        ),
+        (
+            (pd.col("b") >= 20) & (pd.col("a") <= 5),
+            [1, 2, 3],
+            "((col('b') >= 20) & (col('a') <= 5))",
+        ),
+        (
+            (pd.col("b") >= 20) & (pd.col("a") <= 5) & (pd.col("b") < 22),
+            [2, 3],
+            "(((col('b') >= 20) & (col('a') <= 5)) & (col('b') < 22))",
+        ),
+    ],
+)
+def test_col_bool(
+    expr: Expression, expected_values: list[object], expected_str: str
+) -> None:
+    df = pd.DataFrame({"a": list(range(1, 21)), "b": list(range(22, 2, -1))})
+    result = df.loc[expr]
+    ls = result["a"].tolist()
+    assert ls == expected_values
+    assert str(expr) == expected_str
+
+
 @pytest.mark.parametrize(
     ("expr", "expected_values", "expected_str"),
     [

From ecba02a77af21397ffe95640f795e4f47ae6a0ff Mon Sep 17 00:00:00 2001
From: zhangbowen-coder <2439796518@qq.com>
Date: Sat, 13 Dec 2025 21:46:25 +0800
Subject: [PATCH 4/4] .rst entry added

---
 doc/source/whatsnew/v3.0.0.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index bebd928924214..45cd176e6e7dd 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -1423,6 +1423,7 @@ Other
   array if the array shares data with the original DataFrame or Series (:ref:`copy_on_write_read_only_na`).
   This logic is expanded to accessing the underlying pandas ExtensionArray
   through ``.array`` (or ``.values`` depending on the dtype) as well (:issue:`61925`).
+- Fixed bug that pd.col does not support & for combining conditions in .loc (:issue:`63322`)
 
 .. ***DO NOT USE THIS SECTION***