mercurial/thirdparty/zope/__init__.py

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mercurial/thirdparty/zope/__init__.py	Wed Mar 21 19:48:50 2018 -0700
@@ -0,0 +1,7 @@
+# this is a namespace package
+try:
+    import pkg_resources
+    pkg_resources.declare_namespace(__name__)
+except ImportError:
+    import pkgutil
+    __path__ = pkgutil.extend_path(__path__, __name__)