dt.weekday_name - removal of function (#8664)

* Removed dt.weekday_name property

* string formatting

* remove from doc source

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* whats-new

* Revert "whats-new"

This reverts commit 41c7940.

* whats-new

* suggested changes: accessor_dt.py

Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>

* suggested changes: accessor_dt.py

Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>

* suggested changes: whats-new.rst

Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>

Author: 3 people

doc/api-hidden.rst

@@ -134,7 +134,6 @@
    core.accessor_dt.DatetimeAccessor.time
    core.accessor_dt.DatetimeAccessor.week
    core.accessor_dt.DatetimeAccessor.weekday
-   core.accessor_dt.DatetimeAccessor.weekday_name
    core.accessor_dt.DatetimeAccessor.weekofyear
    core.accessor_dt.DatetimeAccessor.year
 

doc/api.rst

@@ -523,7 +523,6 @@ Datetimelike properties
    DataArray.dt.nanosecond
    DataArray.dt.dayofweek
    DataArray.dt.weekday
-   DataArray.dt.weekday_name
    DataArray.dt.dayofyear
    DataArray.dt.quarter
    DataArray.dt.days_in_month

doc/whats-new.rst

@@ -30,6 +30,8 @@ Breaking changes
 
 Deprecations
 ~~~~~~~~~~~~
+- The `dt.weekday_name` parameter wasn't functional on modern pandas versions and has been removed. (:issue:`8610`, :pull:`8664`)
+  By `Sam Coleman <https://github.com/nameloCmaS>`_.
 
 
 Bug fixes
@@ -73,6 +75,9 @@ Documentation
 
 - Pin ``sphinx-book-theme`` to ``1.0.1`` to fix a rendering issue with the sidebar in the docs. (:issue:`8619`, :pull:`8632`)
   By `Tom Nicholas <https://github.com/TomNicholas>`_.
+- Fixed documentation where the use of the depreciated pandas frequency string
+  prevented the documentation from being built. (:pull:`8638`)
+  By `Sam Coleman <https://github.com/nameloCmaS>`_.
 
 .. _whats-new.2024.01.0:
 

xarray/core/accessor_dt.py

@@ -59,7 +59,8 @@ def _access_through_cftimeindex(values, name):
         field_values = _season_from_months(months)
     elif name == "date":
         raise AttributeError(
-            "'CFTimeIndex' object has no attribute `date`. Consider using the floor method instead, for instance: `.time.dt.floor('D')`."
+            "'CFTimeIndex' object has no attribute `date`. Consider using the floor method "
+            "instead, for instance: `.time.dt.floor('D')`."
         )
     else:
         field_values = getattr(values_as_cftimeindex, name)
@@ -456,11 +457,6 @@ def dayofweek(self) -> T_DataArray:
 
     weekday = dayofweek
 
-    @property
-    def weekday_name(self) -> T_DataArray:
-        """The name of day in a week"""
-        return self._date_field("weekday_name", object)
-
     @property
     def dayofyear(self) -> T_DataArray:
         """The ordinal day of the year"""