Merge remote-tracking branch 'upstream/2.3.x' into auto-backport-of-p…

…r-59906-on-2.3.x

.gitattributes

@@ -61,7 +61,6 @@ pandas/_version.py export-subst
 *.pxi export-ignore
 
 # Ignoring stuff from the top level
-.circleci export-ignore
 .github export-ignore
 asv_bench export-ignore
 ci export-ignore

.github/actions/build_pandas/action.yml

@@ -28,13 +28,6 @@ runs:
         fi
       shell: bash -el {0}
 
-    - name: Uninstall nomkl
-      run: |
-        if conda list nomkl | grep nomkl 1>/dev/null; then
-          conda remove nomkl -y
-        fi
-      shell: bash -el {0}
-
     - name: Build Pandas
       run: |
         export CFLAGS="$CFLAGS ${{ inputs.cflags_adds }}"

.github/actions/setup-conda/action.yml

@@ -9,10 +9,14 @@ runs:
     - name: Install ${{ inputs.environment-file }}
       uses: mamba-org/setup-micromamba@v1
       with:
-        # Pinning to avoid 2.0 failures
-        micromamba-version: '1.5.10-0'
         environment-file: ${{ inputs.environment-file }}
         environment-name: test
         condarc-file: ci/.condarc
         cache-environment: true
         cache-downloads: true
+
+    - name: Uninstall pyarrow
+      if: ${{ env.REMOVE_PYARROW == '1' }}
+      run: |
+        micromamba remove -y pyarrow
+      shell: bash -el {0}

.github/workflows/unit-tests.yml

@@ -22,21 +22,25 @@ defaults:
 
 jobs:
   ubuntu:
-    runs-on: ubuntu-22.04
+    runs-on: ${{ matrix.platform }}
     timeout-minutes: 90
     strategy:
       matrix:
+        platform: [ubuntu-22.04, ubuntu-24.04-arm]
         env_file: [actions-39.yaml, actions-310.yaml, actions-311.yaml, actions-312.yaml]
         # Prevent the include jobs from overriding other jobs
         pattern: [""]
+        pandas_future_infer_string: ["0"]
         include:
           - name: "Downstream Compat"
             env_file: actions-311-downstream_compat.yaml
             pattern: "not slow and not network and not single_cpu"
             pytest_target: "pandas/tests/test_downstream.py"
+            platform: ubuntu-22.04
           - name: "Minimum Versions"
             env_file: actions-39-minimum_versions.yaml
             pattern: "not slow and not network and not single_cpu"
+            platform: ubuntu-22.04
           - name: "Locale: it_IT"
             env_file: actions-311.yaml
             pattern: "not slow and not network and not single_cpu"
@@ -47,6 +51,7 @@ jobs:
             # Also install it_IT (its encoding is ISO8859-1) but do not activate it.
             # It will be temporarily activated during tests with locale.setlocale
             extra_loc: "it_IT"
+            platform: ubuntu-22.04
           - name: "Locale: zh_CN"
             env_file: actions-311.yaml
             pattern: "not slow and not network and not single_cpu"
@@ -57,62 +62,86 @@ jobs:
             # Also install zh_CN (its encoding is gb2312) but do not activate it.
             # It will be temporarily activated during tests with locale.setlocale
             extra_loc: "zh_CN"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.9"
             env_file: actions-39.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.10"
             env_file: actions-310.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.11"
             env_file: actions-311.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.12"
             env_file: actions-312.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.11 (warnings)"
             env_file: actions-311.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "warn"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.10 (warnings)"
             env_file: actions-310.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "warn"
+            platform: ubuntu-22.04
           - name: "Copy-on-Write 3.9 (warnings)"
             env_file: actions-39.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "warn"
+            platform: ubuntu-22.04
+          - name: "Future infer strings"
+            env_file: actions-312.yaml
+            pandas_future_infer_string: "1"
+            pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
+          - name: "Future infer strings (without pyarrow)"
+            env_file: actions-311.yaml
+            pandas_future_infer_string: "1"
+            pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
           - name: "Pypy"
             env_file: actions-pypy-39.yaml
             pattern: "not slow and not network and not single_cpu"
             test_args: "--max-worker-restart 0"
+            platform: ubuntu-22.04
           - name: "Numpy Dev"
             env_file: actions-311-numpydev.yaml
             pattern: "not slow and not network and not single_cpu"
             test_args: "-W error::DeprecationWarning -W error::FutureWarning"
+            platform: ubuntu-22.04
           - name: "Pyarrow Nightly"
             env_file: actions-311-pyarrownightly.yaml
             pattern: "not slow and not network and not single_cpu"
+            pandas_future_infer_string: "1"
+            pandas_copy_on_write: "1"
+            platform: ubuntu-22.04
       fail-fast: false
-    name: ${{ matrix.name || format('ubuntu-latest {0}', matrix.env_file) }}
+    name: ${{ matrix.name || format('ubuntu-latest {0}', matrix.env_file) }}-${{ matrix.platform }}
     env:
       PATTERN: ${{ matrix.pattern }}
       LANG: ${{ matrix.lang || 'C.UTF-8' }}
       LC_ALL: ${{ matrix.lc_all || '' }}
       PANDAS_COPY_ON_WRITE: ${{ matrix.pandas_copy_on_write || '0' }}
-      PANDAS_CI: ${{ matrix.pandas_ci || '1' }}
+      PANDAS_CI: '1'
+      PANDAS_FUTURE_INFER_STRING: ${{ matrix.pandas_future_infer_string || '0' }}
       TEST_ARGS: ${{ matrix.test_args || '' }}
       PYTEST_WORKERS: ${{ matrix.pytest_workers || 'auto' }}
       PYTEST_TARGET: ${{ matrix.pytest_target || 'pandas' }}
-      NPY_PROMOTION_STATE: ${{ matrix.env_file == 'actions-311-numpydev.yaml' && 'weak' || 'legacy' }}
       # Clipboard tests
       QT_QPA_PLATFORM: offscreen
+      REMOVE_PYARROW: ${{ matrix.name == 'Future infer strings (without pyarrow)' && '1' || '0' }}
     concurrency:
       # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-${{ matrix.env_file }}-${{ matrix.pattern }}-${{ matrix.extra_apt || '' }}-${{ matrix.pandas_copy_on_write || '' }}
+      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-${{ matrix.env_file }}-${{ matrix.pattern }}-${{ matrix.extra_apt || '' }}-${{ matrix.pandas_copy_on_write || '' }}-${{ matrix.pandas_future_infer_string }}-${{ matrix.platform }}
       cancel-in-progress: true
 
     services:

.github/workflows/wheels.yml

@@ -94,7 +94,8 @@ jobs:
         buildplat:
         - [ubuntu-22.04, manylinux_x86_64]
         - [ubuntu-22.04, musllinux_x86_64]
-        - [macos-12, macosx_x86_64]
+        - [ubuntu-24.04-arm, manylinux_aarch64]
+        - [macos-13, macosx_x86_64]
         # Note: M1 images on Github Actions start from macOS 14
         - [macos-14, macosx_arm64]
         - [windows-2022, win_amd64]
@@ -150,7 +151,7 @@ jobs:
         run: echo "sdist_name=$(cd ./dist && ls -d */)" >> "$GITHUB_ENV"
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.20.0
+        uses: pypa/cibuildwheel@v2.21.3
         with:
          package-dir: ./dist/${{ startsWith(matrix.buildplat[1], 'macosx') && env.sdist_name || needs.build_sdist.outputs.sdist_file }}
         env:

.pre-commit-config.yaml

@@ -274,13 +274,6 @@ repos:
         language: python
         types: [rst]
         files: ^doc/source/(development|reference)/
-    -   id: unwanted-patterns-bare-pytest-raises
-        name: Check for use of bare pytest raises
-        language: python
-        entry: python scripts/validate_unwanted_patterns.py --validation-type="bare_pytest_raises"
-        types: [python]
-        files: ^pandas/tests/
-        exclude: ^pandas/tests/extension/
     -   id: unwanted-patterns-private-function-across-module
         name: Check for use of private functions across modules
         language: python

ci/deps/actions-310.yaml

@@ -5,9 +5,9 @@ dependencies:
   - python=3.10
 
   # build dependencies
-  - versioneer[toml]
+  - versioneer
   - cython>=0.29.33
-  - meson[ninja]=1.2.1
+  - meson=1.2.1
   - meson-python=0.13.1
 
   # test dependencies
@@ -52,7 +52,7 @@ dependencies:
   - scipy>=1.10.0
   - sqlalchemy>=2.0.0
   - tabulate>=0.9.0
-  - xarray>=2022.12.0
+  - xarray>=2022.12.0, <=2024.9.0
   - xlrd>=2.0.1
   - xlsxwriter>=3.0.5
   - zstandard>=0.19.0

ci/deps/actions-311-downstream_compat.yaml

@@ -6,9 +6,9 @@ dependencies:
   - python=3.11
 
   # build dependencies
-  - versioneer[toml]
+  - versioneer
   - cython>=0.29.33
-  - meson[ninja]=1.2.1
+  - meson=1.2.1
   - meson-python=0.13.1
 
   # test dependencies
@@ -54,7 +54,7 @@ dependencies:
   - scipy>=1.10.0
   - sqlalchemy>=2.0.0
   - tabulate>=0.9.0
-  - xarray>=2022.12.0
+  - xarray>=2022.12.0, <=2024.9.0
   - xlrd>=2.0.1
   - xlsxwriter>=3.0.5
   - zstandard>=0.19.0

ci/deps/actions-311-numpydev.yaml

@@ -5,8 +5,8 @@ dependencies:
   - python=3.11
 
   # build dependencies
-  - versioneer[toml]
-  - meson[ninja]=1.2.1
+  - versioneer
+  - meson=1.2.1
   - meson-python=0.13.1
   - cython>=0.29.33