From df90c0c7297aef05d613482363fa01c6f6a05e22 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Wed, 4 Jun 2025 07:17:10 -0400
Subject: [PATCH 01/13] okexcept in enhancingperf.rst

---
 doc/source/user_guide/enhancingperf.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/source/user_guide/enhancingperf.rst b/doc/source/user_guide/enhancingperf.rst
index 647b0f760f4d4..537e9f4d9e1f9 100644
--- a/doc/source/user_guide/enhancingperf.rst
+++ b/doc/source/user_guide/enhancingperf.rst
@@ -81,6 +81,7 @@ Let's take a look and see where the time is spent during this operation
 using the `prun ipython magic function <https://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-prun>`__:
 
 .. ipython:: python
+   :okexcept:
 
    # most time consuming 4 calls
    %prun -l 4 df.apply(lambda x: integrate_f(x["a"], x["b"], x["N"]), axis=1)  # noqa E999
@@ -163,6 +164,7 @@ the index and the series (three times for each row). These Python function calls
 can be improved by passing an ``np.ndarray``.
 
 .. ipython:: python
+   :okexcept:
 
    %prun -l 4 df.apply(lambda x: integrate_f_typed(x["a"], x["b"], x["N"]), axis=1)
 
@@ -217,6 +219,7 @@ The majority of the time is now spent in ``apply_integrate_f``. Disabling Cython
 and ``wraparound`` checks can yield more performance.
 
 .. ipython:: python
+   :okexcept:
 
    %prun -l 4 apply_integrate_f(df["a"].to_numpy(), df["b"].to_numpy(), df["N"].to_numpy())
 

From 53d68dd5272f20f66fad0a6b816f0a95f17fb0ce Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sat, 7 Jun 2025 15:25:36 -0400
Subject: [PATCH 02/13] trials to get the docs right - rst

---
 doc/_templates/autosummary/class.rst      |  2 +-
 doc/source/conf.py                        |  2 +-
 doc/source/reference/offset_frequency.rst |  2 +-
 doc/source/user_guide/enhancingperf.rst   |  2 ++
 pandas/_libs/tslibs/offsets.pyx           | 19 +++++++++++++++----
 5 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/doc/_templates/autosummary/class.rst b/doc/_templates/autosummary/class.rst
index 79c2e37b0192f..b7a3077a0cfa6 100644
--- a/doc/_templates/autosummary/class.rst
+++ b/doc/_templates/autosummary/class.rst
@@ -8,7 +8,7 @@
 
    {% block attributes %}
    {% if attributes %}
-   .. rubric:: {{ _('Attributes') }}
+   .. rubric:: {{ _('Axttributes') }}
 
    .. autosummary::
    {% for item in attributes %}
diff --git a/doc/source/conf.py b/doc/source/conf.py
index 677ee6274b093..f884b4703e3b0 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -724,7 +724,7 @@ def process_class_docstrings(app, what, name, obj, options, lines) -> None:
         joined = "\n".join(lines)
 
         templates = [
-            """.. rubric:: Attributes
+            """.. rubric:: Ayttributes
 
 .. autosummary::
    :toctree:
diff --git a/doc/source/reference/offset_frequency.rst b/doc/source/reference/offset_frequency.rst
index 5876e005574fd..f0f2a244e0ea2 100644
--- a/doc/source/reference/offset_frequency.rst
+++ b/doc/source/reference/offset_frequency.rst
@@ -1177,7 +1177,7 @@ Tick
 
     Tick
 
-Properties
+Pxroperties
 ~~~~~~~~~~
 .. autosummary::
    :toctree: api/
diff --git a/doc/source/user_guide/enhancingperf.rst b/doc/source/user_guide/enhancingperf.rst
index 537e9f4d9e1f9..dbd52911674f3 100644
--- a/doc/source/user_guide/enhancingperf.rst
+++ b/doc/source/user_guide/enhancingperf.rst
@@ -205,6 +205,7 @@ Since ``apply_integrate_f`` is typed to accept an ``np.ndarray``, :meth:`Series.
 calls are needed to utilize this function.
 
 .. ipython:: python
+   :okexcept:
 
    %timeit apply_integrate_f(df["a"].to_numpy(), df["b"].to_numpy(), df["N"].to_numpy())
 
@@ -255,6 +256,7 @@ and ``wraparound`` checks can yield more performance.
       ...:
 
 .. ipython:: python
+   :okexcept:
 
    %timeit apply_integrate_f_wrap(df["a"].to_numpy(), df["b"].to_numpy(), df["N"].to_numpy())
 
diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index a16964435ef50..ea48249193397 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1005,6 +1005,9 @@ cdef class SingleConstructorOffset(BaseOffset):
 # Tick Offsets
 
 cdef class Tick(SingleConstructorOffset):
+    """
+    Represents ticks
+    """
     _adjust_dst = False
     _prefix = "undefined"
     _attributes = tuple(["n", "normalize"])
@@ -1879,6 +1882,14 @@ cdef class BusinessDay(BusinessMixin):
             self._offset = state.pop("offset")
         self._cache = state.pop("_cache", {})
 
+    def __init__(self, n=1, normalize=False, offset=timedelta(0)):
+        """
+        __init__(self, n=1, normalize=False, offset=timedelta(0))
+
+        This defines init
+        """
+        super().__init__(n, normalize, offset)
+
     def _offset_str(self) -> str:
         def get_str(td):
             off_str = ""
@@ -5108,8 +5119,8 @@ def _warn_about_deprecated_aliases(name: str, is_period: bool) -> str:
         warnings.warn(
             f"\'{name}\' is deprecated and will be removed "
             f"in a future version, please use "
-            f"\'{c_PERIOD_AND_OFFSET_DEPR_FREQSTR.get(name)}\'"
-            f" instead.",
+            f"\'{c_PERIOD_AND_OFFSET_DEPR_FREQSTR.get(name)}\' "
+            f"instead.",
             FutureWarning,
             stacklevel=find_stack_level(),
             )
@@ -5122,8 +5133,8 @@ def _warn_about_deprecated_aliases(name: str, is_period: bool) -> str:
             warnings.warn(
                 f"\'{name}\' is deprecated and will be removed "
                 f"in a future version, please use "
-                f"\'{_name}\'"
-                f" instead.",
+                f"\'{_name}\' "
+                f"instead.",
                 FutureWarning,
                 stacklevel=find_stack_level(),
                 )

From 6757399af0aab82e259f4c6eb6f241b9b7d0da67 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sat, 7 Jun 2025 20:31:08 -0400
Subject: [PATCH 03/13] add embedsignature to offsets.pyx

---
 pandas/_libs/tslibs/offsets.pyx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index ea48249193397..0abeff0563a6b 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1,3 +1,5 @@
+# cython: embedsignature=True
+
 import re
 import time
 import warnings
@@ -1180,6 +1182,11 @@ cdef class Day(Tick):
     """
     Offset ``n`` days.
 
+    Parameters
+    ----------
+    n : int
+        Number of multiples of the frequency.
+
     Attributes
     ----------
     n : int, default 1

From bbdf86972e79aed87f4b525291082e3f00f0bbae Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sat, 7 Jun 2025 20:36:21 -0400
Subject: [PATCH 04/13] revert some experiments

---
 doc/_templates/autosummary/class.rst      |  2 +-
 doc/source/conf.py                        |  2 +-
 doc/source/reference/offset_frequency.rst |  2 +-
 pandas/_libs/tslibs/offsets.pyx           | 11 +++--------
 4 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/doc/_templates/autosummary/class.rst b/doc/_templates/autosummary/class.rst
index b7a3077a0cfa6..79c2e37b0192f 100644
--- a/doc/_templates/autosummary/class.rst
+++ b/doc/_templates/autosummary/class.rst
@@ -8,7 +8,7 @@
 
    {% block attributes %}
    {% if attributes %}
-   .. rubric:: {{ _('Axttributes') }}
+   .. rubric:: {{ _('Attributes') }}
 
    .. autosummary::
    {% for item in attributes %}
diff --git a/doc/source/conf.py b/doc/source/conf.py
index f884b4703e3b0..677ee6274b093 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -724,7 +724,7 @@ def process_class_docstrings(app, what, name, obj, options, lines) -> None:
         joined = "\n".join(lines)
 
         templates = [
-            """.. rubric:: Ayttributes
+            """.. rubric:: Attributes
 
 .. autosummary::
    :toctree:
diff --git a/doc/source/reference/offset_frequency.rst b/doc/source/reference/offset_frequency.rst
index f0f2a244e0ea2..5876e005574fd 100644
--- a/doc/source/reference/offset_frequency.rst
+++ b/doc/source/reference/offset_frequency.rst
@@ -1177,7 +1177,7 @@ Tick
 
     Tick
 
-Pxroperties
+Properties
 ~~~~~~~~~~
 .. autosummary::
    :toctree: api/
diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 0abeff0563a6b..0de0859f782ea 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1187,6 +1187,9 @@ cdef class Day(Tick):
     n : int
         Number of multiples of the frequency.
 
+    normalize: bool
+        Must be `False`
+
     Attributes
     ----------
     n : int, default 1
@@ -1889,14 +1892,6 @@ cdef class BusinessDay(BusinessMixin):
             self._offset = state.pop("offset")
         self._cache = state.pop("_cache", {})
 
-    def __init__(self, n=1, normalize=False, offset=timedelta(0)):
-        """
-        __init__(self, n=1, normalize=False, offset=timedelta(0))
-
-        This defines init
-        """
-        super().__init__(n, normalize, offset)
-
     def _offset_str(self) -> str:
         def get_str(td):
             off_str = ""

From 6f5f1bab6d9bf8d4dab843af88715d7d6d7423be Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sat, 7 Jun 2025 21:54:13 -0400
Subject: [PATCH 05/13] define __init__ for Day. remove Tick test doc

---
 pandas/_libs/tslibs/offsets.pyx | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 0de0859f782ea..2a7e17a9a02f3 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1007,9 +1007,6 @@ cdef class SingleConstructorOffset(BaseOffset):
 # Tick Offsets
 
 cdef class Tick(SingleConstructorOffset):
-    """
-    Represents ticks
-    """
     _adjust_dst = False
     _prefix = "undefined"
     _attributes = tuple(["n", "normalize"])
@@ -1185,10 +1182,7 @@ cdef class Day(Tick):
     Parameters
     ----------
     n : int
-        Number of multiples of the frequency.
-
-    normalize: bool
-        Must be `False`
+        Number of multiples of the frequency (default 1).
 
     Attributes
     ----------
@@ -1221,6 +1215,9 @@ cdef class Day(Tick):
     _period_dtype_code = PeriodDtypeCode.D
     _creso = NPY_DATETIMEUNIT.NPY_FR_D
 
+    def __init__(self, n=1, normalize=False):
+        super().__init__(n, normalize)
+        print("in Day init")
 
 cdef class Hour(Tick):
     """

From 3914cda88dca83f7172d69a07d36fd1e2ce50c65 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sat, 7 Jun 2025 22:16:59 -0400
Subject: [PATCH 06/13] remove print

---
 pandas/_libs/tslibs/offsets.pyx | 1 -
 1 file changed, 1 deletion(-)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 2a7e17a9a02f3..21332324af552 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1217,7 +1217,6 @@ cdef class Day(Tick):
 
     def __init__(self, n=1, normalize=False):
         super().__init__(n, normalize)
-        print("in Day init")
 
 cdef class Hour(Tick):
     """

From 841ddc7b854e40a4d716ec149269e06e16a60434 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 00:51:35 -0400
Subject: [PATCH 07/13] WIP: fix conf for Windows. Experiment with YearEnd

---
 doc/source/conf.py              |  2 ++
 pandas/_libs/tslibs/offsets.pyx | 40 ++++++++++++++++++++-------------
 2 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/doc/source/conf.py b/doc/source/conf.py
index 677ee6274b093..f222a228531ff 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -114,6 +114,8 @@
                 ):
                     exclude_patterns.append(rel_fname)
                 elif single_doc and rel_fname != pattern:
+                    if "\\" in rel_fname:
+                        rel_fname = rel_fname.replace("\\", "/")
                     exclude_patterns.append(rel_fname)
 
 with open(os.path.join(source_path, "index.rst.template"), encoding="utf-8") as f:
diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 9ce0ded9c7589..3423b8fcc9078 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1,5 +1,3 @@
-# cython: embedsignature=True
-
 import re
 import time
 import warnings
@@ -79,6 +77,7 @@ from pandas._libs.tslibs.np_datetime cimport (
     pandas_datetime_to_datetimestruct,
     pydate_to_dtstruct,
 )
+from pandas.util._decorators import set_module
 
 import_pandas_datetime()
 
@@ -622,6 +621,7 @@ cdef class BaseOffset:
     @cache_readonly
     def freqstr(self) -> str:
         """
+
         Return a string representing the frequency.
 
         See Also
@@ -648,6 +648,7 @@ cdef class BaseOffset:
 
         >>> pd.offsets.Nano(-3).freqstr
         '-3ns'
+
         """
         try:
             code = self.rule_code
@@ -2690,13 +2691,29 @@ cdef class BYearBegin(YearOffset):
     _day_opt = "business_start"
 
 
-cdef class YearEnd(YearOffset):
+cdef class _YearEnd(YearOffset):
+    _default_month = 12
+    _prefix = "YE"
+    _day_opt = "end"
+
+    cdef readonly:
+        int _period_dtype_code
+
+    def __init__(self, n=1, normalize=False, month=None):
+        # Because YearEnd can be the freq for a Period, define its
+        #  _period_dtype_code at construction for performance
+        YearOffset.__init__(self, n, normalize, month)
+        self._period_dtype_code = PeriodDtypeCode.A + self.month % 12
+
+
+@set_module("pandas.tseries.offsets")
+class YearEnd(_YearEnd):
     """
     DateOffset increments between calendar year end dates.
 
     YearEnd goes to the next date which is the end of the year.
 
-    Attributes
+    Parameters
     ----------
     n : int, default 1
         The number of years represented.
@@ -2730,18 +2747,9 @@ cdef class YearEnd(YearOffset):
     Timestamp('2022-12-31 00:00:00')
     """
 
-    _default_month = 12
-    _prefix = "YE"
-    _day_opt = "end"
-
-    cdef readonly:
-        int _period_dtype_code
-
-    def __init__(self, n=1, normalize=False, month=None):
-        # Because YearEnd can be the freq for a Period, define its
-        #  _period_dtype_code at construction for performance
-        YearOffset.__init__(self, n, normalize, month)
-        self._period_dtype_code = PeriodDtypeCode.A + self.month % 12
+    def __new__(cls, fuck=None, normalize=False, month=None):
+        # this is a comment
+        return _YearEnd.__new__(cls, fuck, normalize, month)
 
 
 cdef class YearBegin(YearOffset):

From 5783fd2f59cb942c2c89beff069d51f54086093c Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 15:58:23 -0400
Subject: [PATCH 08/13] fix template and remove okexcept

---
 doc/source/index.rst.template           | 2 +-
 doc/source/user_guide/enhancingperf.rst | 6 ------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/doc/source/index.rst.template b/doc/source/index.rst.template
index 8a72df0661fe4..40789d8def53d 100644
--- a/doc/source/index.rst.template
+++ b/doc/source/index.rst.template
@@ -113,7 +113,7 @@ programming language.
     :titlesonly:
 
     {{ single_doc[:-4] }}
-{% elif single_doc and single_doc.count('.') <= 1 %}
+{% elif single_doc and ((single_doc.count('.') <= 1) or ('tseries' in single_doc)) -%}
 .. autosummary::
     :toctree: reference/api/
 
diff --git a/doc/source/user_guide/enhancingperf.rst b/doc/source/user_guide/enhancingperf.rst
index 2921bf030bf2c..9d6179ef85bb3 100644
--- a/doc/source/user_guide/enhancingperf.rst
+++ b/doc/source/user_guide/enhancingperf.rst
@@ -81,7 +81,6 @@ Let's take a look and see where the time is spent during this operation
 using the `prun ipython magic function <https://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-prun>`__:
 
 .. ipython:: python
-   :okexcept:
 
    # most time consuming 4 calls
    %prun -l 4 df.apply(lambda x: integrate_f(x['a'], x['b'], x['N']), axis=1)
@@ -164,7 +163,6 @@ the index and the series (three times for each row). These Python function calls
 can be improved by passing an ``np.ndarray``.
 
 .. ipython:: python
-   :okexcept:
 
    %prun -l 4 df.apply(lambda x: integrate_f_typed(x['a'], x['b'], x['N']), axis=1)
 
@@ -205,7 +203,6 @@ Since ``apply_integrate_f`` is typed to accept an ``np.ndarray``, :meth:`Series.
 calls are needed to utilize this function.
 
 .. ipython:: python
-   :okexcept:
 
    %timeit apply_integrate_f(df['a'].to_numpy(), df['b'].to_numpy(), df['N'].to_numpy())
 
@@ -220,7 +217,6 @@ The majority of the time is now spent in ``apply_integrate_f``. Disabling Cython
 and ``wraparound`` checks can yield more performance.
 
 .. ipython:: python
-   :okexcept:
 
    %prun -l 4 apply_integrate_f(df['a'].to_numpy(), df['b'].to_numpy(), df['N'].to_numpy())
 
@@ -256,7 +252,6 @@ and ``wraparound`` checks can yield more performance.
       ...:
 
 .. ipython:: python
-   :okexcept:
 
    %timeit apply_integrate_f_wrap(df['a'].to_numpy(), df['b'].to_numpy(), df['N'].to_numpy())
 
@@ -534,7 +529,6 @@ name in an expression.
    isn't defined in that context.
 
    .. ipython:: python
-      :okexcept:
 
       a, b = 1, 2
       pd.eval("@a + b")

From 0b07f66b4a0fb328549a0238e8f3550ad66621ce Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 15:59:36 -0400
Subject: [PATCH 09/13] put back an okexcept

---
 doc/source/user_guide/enhancingperf.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/source/user_guide/enhancingperf.rst b/doc/source/user_guide/enhancingperf.rst
index 9d6179ef85bb3..9c37f317a805e 100644
--- a/doc/source/user_guide/enhancingperf.rst
+++ b/doc/source/user_guide/enhancingperf.rst
@@ -529,6 +529,7 @@ name in an expression.
    isn't defined in that context.
 
    .. ipython:: python
+      :okexcept:
 
       a, b = 1, 2
       pd.eval("@a + b")

From 788534a4f2612179c088f6096d53721eb41c0bd0 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 16:23:58 -0400
Subject: [PATCH 10/13] remove set_module and debugging

---
 pandas/_libs/tslibs/offsets.pyx | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 3423b8fcc9078..4c91c6e8851bf 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -77,7 +77,6 @@ from pandas._libs.tslibs.np_datetime cimport (
     pandas_datetime_to_datetimestruct,
     pydate_to_dtstruct,
 )
-from pandas.util._decorators import set_module
 
 import_pandas_datetime()
 
@@ -2706,7 +2705,6 @@ cdef class _YearEnd(YearOffset):
         self._period_dtype_code = PeriodDtypeCode.A + self.month % 12
 
 
-@set_module("pandas.tseries.offsets")
 class YearEnd(_YearEnd):
     """
     DateOffset increments between calendar year end dates.
@@ -2747,9 +2745,8 @@ class YearEnd(_YearEnd):
     Timestamp('2022-12-31 00:00:00')
     """
 
-    def __new__(cls, fuck=None, normalize=False, month=None):
-        # this is a comment
-        return _YearEnd.__new__(cls, fuck, normalize, month)
+    def __new__(cls, n=1, normalize=False, month=None):
+        return _YearEnd.__new__(cls, n, normalize, month)
 
 
 cdef class YearBegin(YearOffset):

From 86e670b88902507bb9dcbfc6dfa786319a12c4c7 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 16:26:16 -0400
Subject: [PATCH 11/13] remove additional trials

---
 pandas/_libs/tslibs/offsets.pyx | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 4c91c6e8851bf..7009f722ce6b2 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -620,7 +620,6 @@ cdef class BaseOffset:
     @cache_readonly
     def freqstr(self) -> str:
         """
-
         Return a string representing the frequency.
 
         See Also
@@ -647,7 +646,6 @@ cdef class BaseOffset:
 
         >>> pd.offsets.Nano(-3).freqstr
         '-3ns'
-
         """
         try:
             code = self.rule_code
@@ -1179,11 +1177,6 @@ cdef class Day(Tick):
     """
     Offset ``n`` days.
 
-    Parameters
-    ----------
-    n : int
-        Number of multiples of the frequency (default 1).
-
     Attributes
     ----------
     n : int, default 1

From 92a8ead5cdb42be0e188ad043df5284899035a10 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 16:27:50 -0400
Subject: [PATCH 12/13] remove init from Day

---
 pandas/_libs/tslibs/offsets.pyx | 2 --
 1 file changed, 2 deletions(-)

diff --git a/pandas/_libs/tslibs/offsets.pyx b/pandas/_libs/tslibs/offsets.pyx
index 7009f722ce6b2..9253adef369a5 100644
--- a/pandas/_libs/tslibs/offsets.pyx
+++ b/pandas/_libs/tslibs/offsets.pyx
@@ -1208,8 +1208,6 @@ cdef class Day(Tick):
     _period_dtype_code = PeriodDtypeCode.D
     _creso = NPY_DATETIMEUNIT.NPY_FR_D
 
-    def __init__(self, n=1, normalize=False):
-        super().__init__(n, normalize)
 
 cdef class Hour(Tick):
     """

From ddbd31a96a012ff068100d0b16878793d2328571 Mon Sep 17 00:00:00 2001
From: Irv Lustig <irv@princeton.com>
Date: Sun, 22 Jun 2025 19:14:03 -0400
Subject: [PATCH 13/13] add __new__() for YearEnd in PYI file

---
 pandas/_libs/tslibs/offsets.pyi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pandas/_libs/tslibs/offsets.pyi b/pandas/_libs/tslibs/offsets.pyi
index a71aa42b4f671..94deadae256e6 100644
--- a/pandas/_libs/tslibs/offsets.pyi
+++ b/pandas/_libs/tslibs/offsets.pyi
@@ -156,7 +156,12 @@ class YearOffset(SingleConstructorOffset):
 
 class BYearEnd(YearOffset): ...
 class BYearBegin(YearOffset): ...
-class YearEnd(YearOffset): ...
+
+class YearEnd(YearOffset):
+    def __new__(
+        cls, n: int = ..., normalize: bool = ..., month: int | None = ...
+    ) -> Self: ...
+
 class YearBegin(YearOffset): ...
 
 class QuarterOffset(SingleConstructorOffset):