Properly handle None values when rendering complex types (#526)

Author: mvantellingen

CHANGES

@@ -4,6 +4,7 @@
  - Check if soap:address is defined in the service port instead of raising an
    exception (#527)
  - Update packaging (stop using find_packages()) (#529)
+ - Properly handle None values when rendering complex types (#526)
 
 
 2.3.0 (2017-08-06)

src/zeep/xsd/types/complex.py

@@ -212,6 +212,10 @@ def render(self, parent, value, xsd_type=None, render_path=None):
         if not self.elements_nested and not self.attributes:
             return
 
+        # TODO: Implement test case for this
+        if value is None:
+            value = {}
+
         if isinstance(value, ArrayValue):
             value = value.as_value_object()