diff --git a/src/py.py b/src/py.py
index 7813c9b93..c99790336 100644
--- a/src/py.py
+++ b/src/py.py
@@ -8,3 +8,5 @@ import _pytest._py.path as path
 
 sys.modules["py.error"] = error
 sys.modules["py.path"] = path
+
+__all__ = ["error", "path"]