As 'setuptools' is a dependency 'pkg_resources' will be available always. Ref:...

As 'setuptools' is a dependency 'pkg_resources' will be available always. Ref: http://mail.zope.org/pipermail/zope-dev/2009-March/035277.html

src/zope/__init__.py

-# namespace package boilerplate
-try:
-    __import__('pkg_resources').declare_namespace(__name__)
-except ImportError, e:
-    from pkgutil import extend_path
-    __path__ = extend_path(__path__, __name__)
-
+__import__('pkg_resources').declare_namespace(__name__)