Merge branch 'main' of https://github.com/pandas-dev/pandas

Author: Aniketsy

.github/workflows/broken-linkcheck.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/code-checks.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
@@ -114,7 +114,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
@@ -148,7 +148,7 @@ jobs:
         run: docker image prune -f
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -169,7 +169,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/codeql.yml

@@ -27,7 +27,7 @@ jobs:
           - python
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: github/codeql-action/init@v3
         with:
           languages: ${{ matrix.language }}

.github/workflows/comment-commands.yml

@@ -49,7 +49,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/docbuild-and-upload.yml

@@ -36,7 +36,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 

.github/workflows/package-checks.yml

@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -58,7 +58,7 @@ jobs:
       cancel-in-progress: true
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/unit-tests.yml

@@ -139,7 +139,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
@@ -199,7 +199,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -338,7 +338,7 @@ jobs:
       PYTEST_TARGET: pandas
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -375,7 +375,7 @@ jobs:
       cancel-in-progress: true
     steps:
       - name: Checkout pandas Repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 

.github/workflows/wheels.yml

@@ -48,7 +48,7 @@ jobs:
       sdist_file: ${{ steps.save-path.outputs.sdist_name }}
     steps:
       - name: Checkout pandas
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -119,7 +119,7 @@ jobs:
       IS_SCHEDULE_DISPATCH: ${{ github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' }}
     steps:
       - name: Checkout pandas
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -137,7 +137,7 @@ jobs:
       # removes unnecessary files from the release
       - name: Download sdist (not macOS)
         #if: ${{ matrix.buildplat[1] != 'macosx_*' }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: sdist
           path: ./dist
@@ -160,7 +160,7 @@ jobs:
         run: echo "sdist_name=$(cd ./dist && ls -d */)" >> "$GITHUB_ENV"
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v3.1.3
+        uses: pypa/cibuildwheel@v3.1.4
         with:
          package-dir: ./dist/${{ startsWith(matrix.buildplat[1], 'macosx') && env.sdist_name || needs.build_sdist.outputs.sdist_file }}
         env:

pandas/_libs/tslibs/offsets.pyx

@@ -5192,12 +5192,15 @@ def _warn_about_deprecated_aliases(name: str, is_period: bool) -> str:
     if name in _lite_rule_alias:
         return name
     if name in c_PERIOD_AND_OFFSET_DEPR_FREQSTR:
+        from pandas.errors import Pandas4Warning
+
+        # https://github.com/pandas-dev/pandas/pull/59240
         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.",
-            FutureWarning,
+            Pandas4Warning,
             stacklevel=find_stack_level(),
             )
         return c_PERIOD_AND_OFFSET_DEPR_FREQSTR[name]
@@ -5206,12 +5209,15 @@ def _warn_about_deprecated_aliases(name: str, is_period: bool) -> str:
         if name == _name:
             continue
         if _name in c_PERIOD_AND_OFFSET_DEPR_FREQSTR.values():
+            from pandas.errors import Pandas4Warning
+
+            # https://github.com/pandas-dev/pandas/pull/59240
             warnings.warn(
                 f"\'{name}\' is deprecated and will be removed "
                 f"in a future version, please use "
                 f"\'{_name}\' "
                 f"instead.",
-                FutureWarning,
+                Pandas4Warning,
                 stacklevel=find_stack_level(),
                 )
             return _name

pandas/_libs/tslibs/period.pyx

@@ -3018,6 +3018,7 @@ class Period(_Period):
             # GH#53446
             import warnings
 
+            # TODO: Enforce in 3.0 (#53511)
             from pandas.util._exceptions import find_stack_level
             warnings.warn(
                 "Period with BDay freq is deprecated and will be removed "