Move namespace tests to examples

test/examples/namespace_package/ns1/pkg/__init__.py

@@ -0,0 +1,9 @@
+foo = 'ns1!'
+
+# this is a namespace package
+try:
+    import pkg_resources
+    pkg_resources.declare_namespace(__name__)
+except ImportError:
+    import pkgutil
+    __path__ = pkgutil.extend_path(__path__, __name__)

test/examples/namespace_package/ns1/pkg/ns1_file.py

@@ -0,0 +1 @@
+foo = 'ns1_file!'

test/examples/namespace_package/ns1/pkg/ns1_folder/__init__.py

@@ -0,0 +1 @@
+foo = 'ns1_folder!'