merged incoming changes from main brnach into index_dtype_api_depreca…

…tion

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

@@ -18,7 +18,7 @@ runs:
     - name: Set Arrow version in ${{ inputs.environment-file }} to ${{ inputs.pyarrow-version }}
       run: |
         grep -q '  - pyarrow' ${{ inputs.environment-file }}
-        sed -i"" -e "s/  - pyarrow<10/  - pyarrow=${{ inputs.pyarrow-version }}/" ${{ inputs.environment-file }}
+        sed -i"" -e "s/  - pyarrow/  - pyarrow=${{ inputs.pyarrow-version }}/" ${{ inputs.environment-file }}
         cat ${{ inputs.environment-file }}
       shell: bash
       if: ${{ inputs.pyarrow-version }}

.github/workflows/code-checks.yml

@@ -39,8 +39,8 @@ jobs:
       with:
         extra_args: --verbose --all-files
 
-  docstring_typing_pylint:
-    name: Docstring validation, typing, and pylint
+  docstring_typing_manual_hooks:
+    name: Docstring validation, typing, and other manual pre-commit hooks
     runs-on: ubuntu-22.04
     defaults:
       run:

.github/workflows/codeql.yml

@@ -8,6 +8,9 @@ concurrency:
   group: ${{ github.repository }}-${{ github.head_ref || github.sha }}-${{ github.workflow }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
     runs-on: ubuntu-22.04

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

@@ -15,6 +15,7 @@ on:
 env:
   ENV_FILE: environment.yml
   PANDAS_CI: 1
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
 permissions:
   contents: read
@@ -45,6 +46,12 @@ jobs:
     - name: Build Pandas
       uses: ./.github/actions/build_pandas
 
+    - name: Set up maintainers cache
+      uses: actions/cache@v3
+      with:
+        path: maintainers.json
+        key: maintainers
+
     - name: Build website
       run: python web/pandas_web.py web/pandas --target-path=web/build
 

.github/workflows/macos-windows.yml

@@ -16,6 +16,7 @@ env:
   PANDAS_CI: 1
   PYTEST_TARGET: pandas
   PATTERN: "not slow and not db and not network and not single_cpu"
+  ERROR_ON_WARNINGS: "1"
 
 
 permissions:
@@ -52,7 +53,7 @@ jobs:
       uses: ./.github/actions/setup-conda
       with:
         environment-file: ci/deps/${{ matrix.env_file }}
-        pyarrow-version: ${{ matrix.os == 'macos-latest' && '6' || '' }}
+        pyarrow-version: ${{ matrix.os == 'macos-latest' && '9' || '' }}
 
     - name: Build Pandas
       uses: ./.github/actions/build_pandas

.github/workflows/ubuntu.yml

@@ -29,7 +29,7 @@ jobs:
       matrix:
         env_file: [actions-38.yaml, actions-39.yaml, actions-310.yaml]
         pattern: ["not single_cpu", "single_cpu"]
-        pyarrow_version: ["7", "8", "9"]
+        pyarrow_version: ["7", "8", "9", "10"]
         include:
           - name: "Downstream Compat"
             env_file: actions-38-downstream_compat.yaml
@@ -38,6 +38,7 @@ jobs:
           - name: "Minimum Versions"
             env_file: actions-38-minimum_versions.yaml
             pattern: "not slow and not network and not single_cpu"
+            error_on_warnings: "0"
           - name: "Locale: it_IT"
             env_file: actions-38.yaml
             pattern: "not slow and not network and not single_cpu"
@@ -62,33 +63,42 @@ jobs:
             env_file: actions-310.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_copy_on_write: "1"
+            error_on_warnings: "0"
           - name: "Data Manager"
             env_file: actions-38.yaml
             pattern: "not slow and not network and not single_cpu"
             pandas_data_manager: "array"
+            error_on_warnings: "0"
           - name: "Pypy"
             env_file: actions-pypy-38.yaml
             pattern: "not slow and not network and not single_cpu"
             test_args: "--max-worker-restart 0"
+            error_on_warnings: "0"
           - name: "Numpy Dev"
             env_file: actions-310-numpydev.yaml
             pattern: "not slow and not network and not single_cpu"
             test_args: "-W error::DeprecationWarning:numpy -W error::FutureWarning:numpy"
+            error_on_warnings: "0"
         exclude:
-          - env_file: actions-39.yaml
-            pyarrow_version: "6"
-          - env_file: actions-39.yaml
+          - env_file: actions-38.yaml
             pyarrow_version: "7"
-          - env_file: actions-310.yaml
-            pyarrow_version: "6"
-          - env_file: actions-310.yaml
+          - env_file: actions-38.yaml
+            pyarrow_version: "8"
+          - env_file: actions-38.yaml
+            pyarrow_version: "9"
+          - env_file: actions-39.yaml
             pyarrow_version: "7"
+          - env_file: actions-39.yaml
+            pyarrow_version: "8"
+          - env_file: actions-39.yaml
+            pyarrow_version: "9"
       fail-fast: false
     name: ${{ matrix.name || format('{0} pyarrow={1} {2}', matrix.env_file, matrix.pyarrow_version, matrix.pattern) }}
     env:
       ENV_FILE: ci/deps/${{ matrix.env_file }}
       PATTERN: ${{ matrix.pattern }}
       EXTRA_APT: ${{ matrix.extra_apt || '' }}
+      ERROR_ON_WARNINGS: ${{ matrix.error_on_warnings || '1' }}
       LANG: ${{ matrix.lang || '' }}
       LC_ALL: ${{ matrix.lc_all || '' }}
       PANDAS_DATA_MANAGER: ${{ matrix.pandas_data_manager || 'block' }}

.github/workflows/wheels.yml

@@ -30,6 +30,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   build_wheels:
     name: Build wheel for ${{ matrix.python[0] }}-${{ matrix.buildplat[1] }}

.pre-commit-config.yaml

@@ -1,7 +1,17 @@
 minimum_pre_commit_version: 2.15.0
 exclude: ^LICENSES/|\.(html|csv|svg)$
-# reserve "manual" for mypy and pyright
-default_stages: [commit, merge-commit, push, prepare-commit-msg, commit-msg, post-checkout, post-commit, post-merge, post-rewrite]
+# reserve "manual" for relatively slow hooks which we still want to run in CI
+default_stages: [
+    commit,
+    merge-commit,
+    push,
+    prepare-commit-msg,
+    commit-msg,
+    post-checkout,
+    post-commit,
+    post-merge,
+    post-rewrite
+]
 ci:
     autofix_prs: false
 repos:
@@ -24,7 +34,7 @@ repos:
         types_or: [python, rst, markdown]
         additional_dependencies: [tomli]
 -   repo: https://github.com/MarcoGorelli/cython-lint
-    rev: v0.9.1
+    rev: v0.10.1
     hooks:
     -   id: cython-lint
     -   id: double-quote-cython-strings
@@ -34,9 +44,11 @@ repos:
     -   id: debug-statements
     -   id: end-of-file-fixer
         exclude: \.txt$
-        stages: [commit, merge-commit, push, prepare-commit-msg, commit-msg, post-checkout, post-commit, post-merge, post-rewrite]
+        stages: [commit, merge-commit, push, prepare-commit-msg, commit-msg,
+                 post-checkout, post-commit, post-merge, post-rewrite]
     -   id: trailing-whitespace
-        stages: [commit, merge-commit, push, prepare-commit-msg, commit-msg, post-checkout, post-commit, post-merge, post-rewrite]
+        stages: [commit, merge-commit, push, prepare-commit-msg, commit-msg,
+                 post-checkout, post-commit, post-merge, post-rewrite]
 -   repo: https://github.com/cpplint/cpplint
     rev: 1.6.1
     hooks:
@@ -46,7 +58,14 @@ repos:
         # this particular codebase (e.g. src/headers, src/klib). However,
         # we can lint all header files since they aren't "generated" like C files are.
         exclude: ^pandas/_libs/src/(klib|headers)/
-        args: [--quiet, '--extensions=c,h', '--headers=h', --recursive, '--filter=-readability/casting,-runtime/int,-build/include_subdir']
+        args: [
+            --quiet,
+            '--extensions=c,h',
+            '--headers=h',
+            --recursive,
+            --linelength=88,
+            '--filter=-readability/casting,-runtime/int,-build/include_subdir,-readability/fn_size'
+        ]
 -   repo: https://github.com/PyCQA/flake8
     rev: 6.0.0
     hooks:
@@ -58,12 +77,12 @@ repos:
         - flake8-bugbear==22.7.1
         - pandas-dev-flaker==0.5.0
 -   repo: https://github.com/pycqa/pylint
-    rev: v2.15.6
+    rev: v2.15.9
     hooks:
     -   id: pylint
         stages: [manual]
 -   repo: https://github.com/pycqa/pylint
-    rev: v2.15.6
+    rev: v2.15.9
     hooks:
     -   id: pylint
         alias: redefined-outer-name
@@ -76,15 +95,14 @@ repos:
             |^pandas/util/_test_decorators\.py  # keep excluded
             |^pandas/_version\.py  # keep excluded
             |^pandas/conftest\.py  # keep excluded
-            |^pandas/core/generic\.py
         args: [--disable=all, --enable=redefined-outer-name]
         stages: [manual]
 -   repo: https://github.com/PyCQA/isort
-    rev: 5.10.1
+    rev: 5.11.4
     hooks:
     -   id: isort
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v3.2.2
+    rev: v3.3.1
     hooks:
     -   id: pyupgrade
         args: [--py38-plus]
@@ -107,6 +125,7 @@ repos:
     hooks:
     -   id: yesqa
         additional_dependencies: *flake8_dependencies
+        stages: [manual]
 -   repo: local
     hooks:
     # NOTE: we make `black` a local hook because if it's installed from
@@ -214,7 +233,6 @@ repos:
         exclude: ^pandas/tests/extension/base/base\.py
     -   id: pip-to-conda
         name: Generate pip dependency from conda
-        description: This hook checks if the conda environment.yml and requirements-dev.txt are equal
         language: python
         entry: python scripts/generate_pip_deps_from_conda.py
         files: ^(environment.yml|requirements-dev.txt)$
@@ -311,6 +329,16 @@ repos:
         files: ^pandas
         exclude: ^(pandas/tests|pandas/_version.py|pandas/io/clipboard)
         language: python
+        stages: [manual]
         additional_dependencies:
         - autotyping==22.9.0
         - libcst==0.4.7
+    -   id: check-test-naming
+        name: check that test names start with 'test'
+        entry: python -m scripts.check_test_naming
+        types: [python]
+        files: ^pandas/tests
+        language: python
+        exclude: |
+            (?x)
+            ^pandas/tests/generic/test_generic.py  # GH50380

Dockerfile

@@ -8,6 +8,6 @@ RUN apt-get install -y build-essential
 RUN apt-get install -y libhdf5-dev
 
 RUN python -m pip install --upgrade pip
-RUN python -m pip install --use-deprecated=legacy-resolver \
+RUN python -m pip install \
     -r https://raw.githubusercontent.com/pandas-dev/pandas/main/requirements-dev.txt
 CMD ["/bin/bash"]

README.md

@@ -11,7 +11,6 @@
 [![Package Status](https://img.shields.io/pypi/status/pandas.svg)](https://pypi.org/project/pandas/)
 [![License](https://img.shields.io/pypi/l/pandas.svg)](https://github.com/pandas-dev/pandas/blob/main/LICENSE)
 [![Coverage](https://codecov.io/github/pandas-dev/pandas/coverage.svg?branch=main)](https://codecov.io/gh/pandas-dev/pandas)
-[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/pandas-dev/pandas/badge)](https://api.securityscorecards.dev/projects/github.com/pandas-dev/pandas)
 [![Downloads](https://static.pepy.tech/personalized-badge/pandas?period=month&units=international_system&left_color=black&right_color=orange&left_text=PyPI%20downloads%20per%20month)](https://pepy.tech/project/pandas)
 [![Slack](https://img.shields.io/badge/join_Slack-information-brightgreen.svg?logo=slack)](https://pandas.pydata.org/docs/dev/development/community.html?highlight=slack#community-slack)
 [![Powered by NumFOCUS](https://img.shields.io/badge/powered%20by-NumFOCUS-orange.svg?style=flat&colorA=E1523D&colorB=007D8A)](https://numfocus.org)

asv_bench/asv.conf.json

@@ -41,7 +41,7 @@
     // pip (with all the conda available packages installed first,
     // followed by the pip installed packages).
     "matrix": {
-        "numpy": [],
+        "numpy": ["1.23.5"],  // https://github.com/pandas-dev/pandas/pull/50356
         "Cython": ["0.29.32"],
         "matplotlib": [],
         "sqlalchemy": [],

asv_bench/benchmarks/array.py

@@ -90,5 +90,46 @@ def time_setitem_list(self, multiple_chunks):
     def time_setitem_slice(self, multiple_chunks):
         self.array[::10] = "foo"
 
+    def time_setitem_null_slice(self, multiple_chunks):
+        self.array[:] = "foo"
+
     def time_tolist(self, multiple_chunks):
         self.array.tolist()
+
+
+class ArrowExtensionArray:
+
+    params = [
+        [
+            "boolean[pyarrow]",
+            "float64[pyarrow]",
+            "int64[pyarrow]",
+            "string[pyarrow]",
+            "timestamp[ns][pyarrow]",
+        ],
+        [False, True],
+    ]
+    param_names = ["dtype", "hasna"]
+
+    def setup(self, dtype, hasna):
+        N = 100_000
+        if dtype == "boolean[pyarrow]":
+            data = np.random.choice([True, False], N, replace=True)
+        elif dtype == "float64[pyarrow]":
+            data = np.random.randn(N)
+        elif dtype == "int64[pyarrow]":
+            data = np.arange(N)
+        elif dtype == "string[pyarrow]":
+            data = tm.rands_array(10, N)
+        elif dtype == "timestamp[ns][pyarrow]":
+            data = pd.date_range("2000-01-01", freq="s", periods=N)
+        else:
+            raise NotImplementedError
+
+        arr = pd.array(data, dtype=dtype)
+        if hasna:
+            arr[::2] = pd.NA
+        self.arr = arr
+
+    def time_to_numpy(self, dtype, hasna):
+        self.arr.to_numpy()