add a class method to construct the Address field from a dict

themis/datatypes/address.py

@@ -46,6 +46,14 @@ class Address(Field):
                 'email': self.email,
                }
 
+    def from_dict(cls, d):
+        o = cls()
+        for attr in ('title', 'street', 'zipcode', 'city', 'phone1', 'phone2',
+                     'fax', 'email'):
+            setattr(o, attr, d.get(attr))
+        return o
+    from_dict = classmethod(from_dict)
+
 class IAddressWidget(IWidget):
     pass