fixed serialization problem

sure_tosca-flask-server/sure_tosca/models/base_model_.py

@@ -64,3 +64,12 @@ class Model(object):
     def __ne__(self, other):
         """Returns true if both objects are not equal"""
         return not self == other
+
+    # def __hash__(self):
+    #     return hash(self.__dict__.keys())
+
+    def __key(self):
+        return tuple(sorted(self.to_dict()))
+
+    def __hash__(self):
+        return hash(self.__key())
\ No newline at end of file

sure_tosca-flask-server/sure_tosca/models/node_template.py

@@ -15,7 +15,8 @@ class NodeTemplate(Model):
     Do not edit the class manually.
     """
 
-    def __init__(self, derived_from=None, properties=None, requirements=None, interfaces=None, capabilities=None, type=None, description=None, directives=None, attributes=None, artifacts=None):  # noqa: E501
+    def __init__(self, derived_from=None, properties=None, requirements=None, interfaces=None, capabilities=None,
+                 type=None, description=None, directives=None, attributes=None, artifacts=None):  # noqa: E501
         """NodeTemplate - a model defined in Swagger
 
         :param derived_from: The derived_from of this NodeTemplate.  # noqa: E501

sure_tosca-flask-server/sure_tosca/models/topology_template.py

@@ -3,9 +3,9 @@
 from __future__ import absolute_import
 from datetime import date, datetime  # noqa: F401
 
-from toscaparser.nodetemplate import NodeTemplate
 from typing import List, Dict  # noqa: F401
 
+from sure_tosca.models import NodeTemplate
 from sure_tosca.models.base_model_ import Model
 from sure_tosca import util
 
@@ -245,3 +245,8 @@ class TopologyTemplate(Model):
         """
 
         self._policies = policies
+
+    def __eq__(self, other):
+        if isinstance(other, TopologyTemplate):
+            return self.__key() == other.__key()
+        return NotImplemented
\ No newline at end of file

sure_tosca-flask-server/sure_tosca/models/tosca_template.py

@@ -3,9 +3,9 @@
 from __future__ import absolute_import
 from datetime import date, datetime  # noqa: F401
 
-from toscaparser.topology_template import TopologyTemplate
 from typing import List, Dict  # noqa: F401
 
+from sure_tosca.models import TopologyTemplate
 from sure_tosca.models.base_model_ import Model
 from sure_tosca import util
 
@@ -16,7 +16,11 @@ class ToscaTemplate(Model):
     Do not edit the class manually.
     """
 
-    def __init__(self, tosca_definitions_version=None, tosca_default_namespace=None, template_name=None, topology_template=None, template_author=None, template_version=None, description=None, imports=None, dsl_definitions=None, node_types=None, relationship_types=None, relationship_templates=None, capability_types=None, artifact_types=None, data_types=None, interface_types=None, policy_types=None, group_types=None, repositories=None):  # noqa: E501
+    def __init__(self, tosca_definitions_version=None, tosca_default_namespace=None, template_name=None,
+                 topology_template=None, template_author=None, template_version=None, description=None, imports=None,
+                 dsl_definitions=None, node_types=None, relationship_types=None, relationship_templates=None,
+                 capability_types=None, artifact_types=None, data_types=None, interface_types=None, policy_types=None,
+                 group_types=None, repositories=None):  # noqa: E501
         """ToscaTemplate - a model defined in Swagger
 
         :param tosca_definitions_version: The tosca_definitions_version of this ToscaTemplate.  # noqa: E501
@@ -531,3 +535,8 @@ class ToscaTemplate(Model):
         """
 
         self._repositories = repositories
+
+    def __eq__(self, other):
+        if isinstance(other, ToscaTemplate):
+            return self.__key() == other.__key()
+        return NotImplemented