Distributes Pypy wheels for linux

.github/workflows/manylinux_build.sh

@@ -18,4 +18,7 @@ if [ %for_each_version% ]; then
   for VERSION in 8 9 10 11 12; do
     maturin build --release --no-default-features --features rustls --interpreter "python3.$VERSION" --compatibility manylinux2014
   done
-fi
+  for VERSION in 9 10; do
+    maturin build --release --no-default-features --features rustls --interpreter "pypy3.$VERSION" --compatibility manylinux2014
+  done
+fi

.github/workflows/tests.yml

@@ -268,6 +268,26 @@ jobs:
       - run: python -m unittest
         working-directory: ./python/tests
 
+  python_pypy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+      - run: rustup update && rustup toolchain install nightly && rustup default 1.70.0
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "pypy3.10"
+          cache: pip
+          cache-dependency-path: '**/requirements.dev.txt'
+      - run: pip install -r python/requirements.dev.txt
+      - run: maturin build -m python/Cargo.toml
+      - run: pip install --no-index --find-links=target/wheels/ pyoxigraph
+      - run: rm -r target/wheels
+      - run: python -m unittest
+        working-directory: ./python/tests
+
   python_windows:
     runs-on: windows-latest
     steps:

python/tests/test_store.py

@@ -1,3 +1,4 @@
+import gc
 import unittest
 from io import BytesIO, StringIO, UnsupportedOperation
 from pathlib import Path
@@ -386,6 +387,7 @@ class TestStore(unittest.TestCase):
             store = Store(dir)
             store.add(quad)
             del store
+            gc.collect()
             store = Store.read_only(dir)
             self.assertEqual(list(store), [quad])