Debug libhdf5 version in CI

.github/workflows/pre-commit.yml

@@ -11,7 +11,7 @@ jobs:
     name: pre-commit hooks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.2.1
+      - uses: actions/checkout@v4
       - uses: actions/[email protected]
         with:
           python-version: '3.12'

.github/workflows/publish_docs.yml

@@ -29,8 +29,8 @@ jobs:
       # Always checkout master branch, even if triggered by a tag.
       # Otherwise sphinx-multiversion does not pull the master branch.
       - uses: actions/checkout@v4
-        with:
-          ref: master
+      with:
+        ref: master
 
       - uses: actions/setup-python@v4
         with:

.github/workflows/pypi_publish.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 💻 Checkout the repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 🐍 Set up Python
         uses: actions/setup-python@v4

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
         numpy-version: ['latest', '1.24.4']
       fail-fast: false
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
@@ -40,17 +40,21 @@ jobs:
           set -xe
           pip install .
 
-      - name: Print hdf5 configuration
-        run: |
-          set -xe
-          h5cc -showconfig
-
       - name: Install versioned-hdf5 test packages and extra h5py compression types
         run: |
           set -xe
           pip install .[test]
           pip install hdf5plugin tables
 
+      - name: Dump pip environment
+        run: pip list
+
+      - name: Print hdf5 configuration
+        run: |
+          set -xe
+          python -c 'import utils; utils.debug_libhdf5_so()'
+          h5cc -showconfig
+
       - name: Run Tests
         run: |
           set -xe

utils/__init__.py

@@ -1,6 +1,6 @@
-from __future__ import absolute_import, division, print_function, with_statement
-
+import os
 import shutil
+import subprocess
 import tempfile
 from contextlib import contextmanager
 
@@ -10,3 +10,17 @@ def temp_dir_ctx():
     tmp_dir = tempfile.mkdtemp()
     yield tmp_dir
     shutil.rmtree(tmp_dir)
+
+
+def debug_libhdf5_so():
+    """Print out which .so file is actually loaded at runtime for libhdf5"""
+    import h5py
+
+    for row in (
+        subprocess.check_output(["lsof", "-p", str(os.getpid())])
+        .decode("utf-8")
+        .splitlines()
+    ):
+        row = row.strip()
+        if "libhdf5" in row:
+            print(row)