temporary debug messages

.github/workflows/test_pypy.yml

@@ -0,0 +1,22 @@
+name: TestPyPy
+
+on:
+  workflow_dispatch:
+
+jobs:
+  test:
+    name: Test
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: pypy3.10
+          architecture: "x64"
+      - name: Create venv
+        run: python -m venv venv
+      - name: Run test
+        run: |
+          set PATH="%PWD%\venv\Scripts;%PATH%"
+          set VIRTUAL_ENV="%PWD%\venv"
+          "venv\Scripts\python.exe" example.py

example.py

@@ -0,0 +1,19 @@
+import multiprocessing
+import os
+import sys
+
+
+def worker() -> None:
+    print(f"worker process executable: {sys.executable}")
+    print(f"worker process exec_prefix: {sys.exec_prefix}")
+    print(f"worker process env: {os.environ}")
+
+
+if __name__ == "__main__":
+    print(f"main process executable: {sys.executable}")
+    print(f"main process exec_prefix: {sys.exec_prefix}")
+    print(f"main process env: {os.environ}")
+
+    p = multiprocessing.Process(target=worker)
+    p.start()
+    p.join()

src/maturin_import_hook/project_importer.py

@@ -124,6 +124,7 @@ def find_spec(
             logger.debug(
                 '%s searching for "%s"%s', type(self).__name__, package_name, " (reload)" if already_loaded else ""
             )
+            logger.debug("search paths: %s", sys.path)
 
         start = time.perf_counter()
 
@@ -133,6 +134,7 @@ def find_spec(
         spec = None
         rebuilt = False
         for search_path in search_paths:
+            logger.debug("contents of %s:\n%s", search_path, sorted(os.listdir(search_path)))
             project_dir, is_editable = _load_dist_info(search_path, package_name)
             if project_dir is not None:
                 logger.debug('found project linked by dist-info: "%s"', project_dir)

tests/test_import_hook/common.py

@@ -139,11 +139,16 @@ def run_python(
 ) -> Tuple[str, float]:
     start = time.perf_counter()
 
-    cmd = [sys.executable]
+    interpreter_path = sys.executable
+
+    msg = f"python executable on the subprocess: {sys.executable} ({sys.exec_prefix})"
+    raise PythonProcessError(msg)
+
+    cmd = [interpreter_path]
     if profile is not None:
         cmd += ["-m", "cProfile", "-o", str(profile.resolve())]
     cmd.extend(args)
-    log.info("running python")
+    log.info("running python ('%s')", interpreter_path)
     try:
         proc = subprocess.run(
             cmd,
@@ -161,6 +166,8 @@ def run_python(
                 "-" * 40,
                 "Called Process Error:",
                 subprocess.list2cmdline(cmd),
+                "Env:",
+                str(os.environ),
                 "Output:",
                 output,
                 "-" * 40,

tests/test_import_hook/test_project_importer.py

@@ -358,6 +358,7 @@ def test_concurrent_import(workspace: Path, initially_mixed: bool, mixed: bool)
 
     args = {"python_script": check_installed_with_hook, "quiet": True}
 
+    log.info("python executable on the main thread: %s (%s)", sys.executable, sys.exec_prefix)
     outputs = run_concurrent_python(3, run_python_code, args)
 
     num_compilations = 0