Update GitHub Actions to latest and deprecate ACS class

.github/workflows/claude.yml

@@ -26,7 +26,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 

.github/workflows/greetings.yml

@@ -9,7 +9,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/first-interaction@v1
+      - uses: actions/first-interaction@v3
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           pr-message: 'Hello @${{ github.actor }}, thank you for submitting a PR! We will respond as soon as possible.'

.github/workflows/publish.yml

@@ -11,8 +11,8 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v5
+      - uses: actions/checkout@v6
+      - uses: astral-sh/setup-uv@v7
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
@@ -27,8 +27,8 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v5
+      - uses: actions/checkout@v6
+      - uses: astral-sh/setup-uv@v7
       - name: Build package
         run: uv build
       - name: Publish to PyPI

.github/workflows/test.yml

@@ -6,8 +6,8 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v5
+      - uses: actions/checkout@v6
+      - uses: astral-sh/setup-uv@v7
       - run: uvx ruff check .
       - run: uvx ruff format --check .
 
@@ -17,8 +17,8 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
-      - uses: astral-sh/setup-uv@v5
+      - uses: actions/checkout@v6
+      - uses: astral-sh/setup-uv@v7
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

pypums/surveys.py

@@ -1,5 +1,6 @@
 """Surveys module."""
 
+import warnings
 from dataclasses import dataclass
 from pathlib import Path
 
@@ -18,14 +19,25 @@
 
 @dataclass
 class ACS:
-    """American Community Survey base class."""
+    """American Community Survey base class.
+
+    .. deprecated:: 0.2
+        Use :func:`pypums.get_pums` for PUMS microdata or
+        :func:`pypums.get_acs` for ACS summary tables instead.
+    """
 
     year: int = 2023
     state: str = "California"
     survey: str = "1-Year"
     sample_unit: str = "person"
 
     def __post_init__(self):
+        warnings.warn(
+            "ACS() is deprecated. Use get_pums() for PUMS microdata "
+            "or get_acs() for ACS summary tables.",
+            DeprecationWarning,
+            stacklevel=3,
+        )
         self._year = _clean_year(self.year)
         self._survey = _clean_survey(self.survey, self._year)
         self._sample_unit = self.sample_unit[0].lower()

tests/test_pypums.py

@@ -68,6 +68,7 @@ def test_clean_year_range():
         _clean_year(1999)
 
 
+@pytest.mark.filterwarnings("ignore::DeprecationWarning")
 def test_acs_class_urls():
     assert (
         ACS()._survey_url
@@ -87,6 +88,7 @@ def test_acs_class_urls():
     )
 
 
+@pytest.mark.filterwarnings("ignore::DeprecationWarning")
 def test_acs_class_2020():
     """ACS for 2020 should always use 5-Year survey."""
     acs_2020 = ACS(2020, "Ohio", "1-Year")
@@ -97,6 +99,7 @@ def test_acs_class_2020():
     )
 
 
+@pytest.mark.filterwarnings("ignore::DeprecationWarning")
 def test_acs_class_attributes():
     assert ACS()._sample_unit == ACS().sample_unit[0].lower()
     assert ACS(sample_unit="household")._sample_unit == "h"
@@ -105,10 +108,12 @@ def test_acs_class_attributes():
     assert ACS(2020, survey="1-Year")._survey == "5-Year/"
 
 
+@pytest.mark.filterwarnings("ignore::DeprecationWarning")
 def test_acs_class_as_df():
     assert isinstance(ACS(state="alaska").as_dataframe(), DataFrame)
 
 
+@pytest.mark.filterwarnings("ignore::DeprecationWarning")
 def test_instantiated_acs():
     instantiated_ACS = ACS()
     instantiated_ACS.download()
@@ -122,3 +127,8 @@ def test_instantiated_acs():
         f"raw/acs_{str(instantiated_ACS._year)[-2:]}/"
     )
     assert isinstance(instantiated_df, DataFrame)
+
+
+def test_acs_class_emits_deprecation_warning():
+    with pytest.warns(DeprecationWarning, match="ACS\\(\\) is deprecated"):
+        ACS()