Add support for free-threaded Python (PEP 703)

.github/workflows/main.yml

@@ -65,6 +65,7 @@ jobs:
           - '3.12'
           - '3.13'
           - '3.14'
+          - '3.14t'
           - 'pypy3.11'
       fail-fast: false
     runs-on: ${{ matrix.os.image }}

.github/workflows/release.yml

@@ -60,6 +60,15 @@ jobs:
           args: --release --out dist --interpreter ${{ startsWith(matrix.python, 'pypy') && matrix.python || format('python{0}', matrix.python) }}
           sccache: 'true'
 
+      - name: Build free-threaded wheels
+        uses: PyO3/maturin-action@04ac600d27cdf7a9a280dadf7147097c42b757ad # v1.50.1
+        if: ${{ !startsWith(matrix.python, 'pypy') }}
+        with:
+          target: ${{ matrix.target }}
+          manylinux: ${{ matrix.manylinux }}
+          args: --release --out dist --interpreter python3.14t
+          sccache: 'true'
+
       - name: Upload wheels
         uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
@@ -101,6 +110,20 @@ jobs:
           args: --release --out dist --interpreter ${{ startsWith(matrix.python, 'pypy') && matrix.python || format('python{0}', matrix.python) }}
           sccache: 'true'
 
+      - name: Install free-threaded Python
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        if: ${{ !startsWith(matrix.python, 'pypy') }}
+        with:
+          python-version: '3.14t'
+
+      - name: Build free-threaded wheels
+        uses: PyO3/maturin-action@04ac600d27cdf7a9a280dadf7147097c42b757ad # v1.50.1
+        if: ${{ !startsWith(matrix.python, 'pypy') }}
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist --interpreter python3.14t
+          sccache: 'true'
+
       - name: Upload wheels
         uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:
@@ -138,6 +161,20 @@ jobs:
           args: --release --out dist --interpreter ${{ steps.setup-python.outputs.python-path }}
           sccache: 'true'
 
+      - name: Install free-threaded Python
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        if: ${{ !startsWith(matrix.python, 'pypy') }}
+        with:
+          python-version: '3.14t'
+
+      - name: Build free-threaded wheels
+        uses: PyO3/maturin-action@04ac600d27cdf7a9a280dadf7147097c42b757ad # v1.50.1
+        if: ${{ !startsWith(matrix.python, 'pypy') }}
+        with:
+          target: ${{ matrix.target }}
+          args: --release --out dist --interpreter python3.14t
+          sccache: 'true'
+
       - name: Upload wheels
         uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with:

tests/unit/test_thread_safety.py

@@ -0,0 +1,32 @@
+from __future__ import annotations
+
+import concurrent.futures
+from pathlib import Path
+from typing import TYPE_CHECKING
+
+from deptry.imports.extract import get_imported_modules_from_list_of_files
+
+if TYPE_CHECKING:
+    from deptry.imports.location import Location
+
+ITERATIONS = 50
+WORKERS = 8
+FIXTURE_FILE = Path("tests/fixtures/some_imports.py")
+
+
+def _extract_imports() -> dict[str, list[Location]]:
+    return get_imported_modules_from_list_of_files([FIXTURE_FILE])
+
+
+def test_concurrent_import_extraction() -> None:
+    if not FIXTURE_FILE.exists():
+        return
+
+    expected = _extract_imports()
+
+    with concurrent.futures.ThreadPoolExecutor(max_workers=WORKERS) as pool:
+        futures = [pool.submit(_extract_imports) for _ in range(ITERATIONS)]
+        results = [f.result() for f in futures]
+
+    for result in results:
+        assert set(result.keys()) == set(expected.keys())