Avoid loading setuptools plugins under pytest

sqlite_utils/plugins.py

@@ -7,8 +7,15 @@
 pm: pluggy.PluginManager = pluggy.PluginManager("sqlite_utils")
 pm.add_hookspecs(hookspecs)
 
-if not getattr(sys, "_called_from_test", False):
-    # Only load plugins if not running tests
+
+def _should_load_setuptools_plugins() -> bool:
+    # Avoid loading setuptools plugins while running test suites.
+    # Checking sys.modules for pytest makes this robust even if
+    # sys._called_from_test is set later during test initialization.
+    return not getattr(sys, "_called_from_test", False) and "pytest" not in sys.modules
+
+
+if _should_load_setuptools_plugins():
     pm.load_setuptools_entrypoints("sqlite_utils")
 
 

tests/test_plugins.py

@@ -2,6 +2,7 @@
 import click
 import importlib
 import pytest
+import sys
 from sqlite_utils import cli, Database, hookimpl, plugins
 
 
@@ -16,6 +17,12 @@ def _supports_pragma_function_list():
         db.close()
 
 
+def test_should_not_load_setuptools_plugins_when_pytest_present(monkeypatch):
+    monkeypatch.delattr(sys, "_called_from_test", raising=False)
+    assert plugins._should_load_setuptools_plugins() is False
+
+
+
 def test_register_commands():
     importlib.reload(cli)
     assert plugins.get_plugins() == []