Update version to 0.8.40 and enhance TestPyPI installation with retry logic

Author: Denis Jelovina

.github/workflows/publish-to-testpypi.yml

@@ -350,14 +350,33 @@ jobs:
           source "${VENV_DIR}/bin/activate"
           python -m pip install --upgrade pip setuptools wheel numpy
 
-          # Short sleep to allow TestPyPI to propagate uploaded wheels
-          echo "Sleeping 60s to allow TestPyPI propagation before install..."
-          sleep 60
-
-          # Determine version from pyalp/pyproject.toml
+          # Retry pip install from TestPyPI with exponential backoff (bounded attempts)
           PYALP_VERSION=$(grep -E '^version\s*=\s*"' pyalp/pyproject.toml | head -n1 | sed -E 's/^version\s*=\s*"([^"]+)".*/\1/')
-          echo "Installing alp-graphblas==${PYALP_VERSION} from TestPyPI"
-          python -m pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple alp-graphblas==${PYALP_VERSION} -v
+          echo "Installing alp-graphblas==${PYALP_VERSION} from TestPyPI (with retries)"
+
+          MAX_ATTEMPTS=6
+          SLEEP_BASE=10
+          SUCCESS=0
+
+          for attempt in $(seq 1 ${MAX_ATTEMPTS}); do
+            echo "--- attempt ${attempt} of ${MAX_ATTEMPTS} ---"
+            # verbose pip output helps debugging in CI logs
+            python -m pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple alp-graphblas==${PYALP_VERSION} -v && SUCCESS=1 && break
+            echo "pip install failed on attempt ${attempt}"
+            if [ "${attempt}" -lt "${MAX_ATTEMPTS}" ]; then
+              SLEEP_SECONDS=$((SLEEP_BASE * attempt))
+              echo "Sleeping ${SLEEP_SECONDS}s before retry..."
+              sleep "${SLEEP_SECONDS}"
+            fi
+          done
+
+          if [ "${SUCCESS}" -ne 1 ]; then
+            echo "ERROR: failed to install alp-graphblas from TestPyPI after ${MAX_ATTEMPTS} attempts" >&2
+            exit 1
+          fi
+
+          # Print a compact JSON summary of installed backends for easy scanning in CI logs
+            python -c "import json,importlib,sys; print(json.dumps({'backends': importlib.import_module('pyalp').list_backends()}))"
 
       - name: Run in-process backend import smoke test
         shell: bash

pyalp/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "alp-graphblas"
-version = "0.8.39"
+version = "0.8.40"
 description = "Python bindings for ALP GraphBLAS (minimal package layout)"
 authors = [ { name = "ALP" } ]
 readme = "README.md"

pyalp/tests/test_bckds_inprocess.py

@@ -36,6 +36,7 @@ def make_simple_matrix():
 
 def main():
     m,n,i,j,v = make_simple_matrix()
+    exercised = 0
 
     # If the installed package exposes a `pyalp` package, prefer to query
     # it for the list of available backends and skip any that aren't present
@@ -87,12 +88,18 @@ def main():
         # Construct an instance
         try:
             mat = Matrix(m, n, i, j, v)
+            exercised += 1
             print(f"Constructed Matrix from {backend}:", type(mat))
         except Exception as e:
             print(f"FAILED TO CONSTRUCT Matrix from {backend}: {e}")
             raise
 
     print('\nALL BACKENDS IMPORTED AND INSTANCES CREATED SUCCESSFULLY')
+    if exercised == 0:
+        print('ERROR: no backends were exercised (none installed).', file=sys.stderr)
+        raise SystemExit(2)
+    else:
+        print(f'SUCCESS: exercised {exercised} backend(s).')
 
 if __name__ == '__main__':
     main()