Undocumented Faults incorrectly de-serialize

example: LicenseUsageFault
  <soapenv:Body>
    <soapenv:Fault>
      <faultcode>ServerFaultCode</faultcode>
      <faultstring/>
      <detail>
        <LicenseUsageFaultFault xsi:type="LicenseUsageFault">
           <reason>dataTampered</reason></LicenseUsageFaultFault>
      </detail>
    </soapenv:Fault>

The detail tag's first child represents the data type to unmarshal the Fault message envelope's contents into. If that child tag does not have a matching WSDL definition pyVmomi fails to raise the fault.

This change lets the library dynamically create the new fault data type at runtime.

closes vmware#72

pyVmomi/SoapAdapter.py

@@ -566,7 +566,15 @@ def StartElementHandler(self, tag, attr):
       if not self.stack:
          if self.isFault:
             ns, name = self.SplitTag(tag)
-            objType = self.LookupWsdlType(ns, name[:-5])
+            try:
+                objType = self.LookupWsdlType(ns, name[:-5])
+            except:
+                fault_name = name[:-5]
+                vmodl_name = "vmodl.fault." + fault_name
+                CreateDataType(str(vmodl_name), str(fault_name),
+                               "vmodl.RuntimeFault", "vmodl.version.version0",
+                               None)
+                objType = self.LookupWsdlType(ns, fault_name)
             # Only top level soap fault should be deserialized as method fault
             deserializeAsLocalizedMethodFault = False
          else: