[code][api] Fix key search in dictionaries

beat/web/code/api.py

@@ -110,14 +110,14 @@ class RetrieveUpdateDestroyCodeView(RetrieveUpdateDestroyContributionView):
             if not data:
                 raise serializers.ValidationError({'data': 'Empty'})
 
-        if data.has_key('short_description'):
+        if 'short_description' in data:
             if not(isinstance(data['short_description'], six.string_types)):
                 raise ValidationError({'short_description': 'Invalid short_description data'})
             short_description = data['short_description']
         else:
             short_description = None
 
-        if data.has_key('description'):
+        if 'description' in data:
             if not(isinstance(data['description'], six.string_types)):
                 raise serializers.ValidationError({'description': 'Invalid description data'})
             description = data['description']
@@ -128,7 +128,7 @@ class RetrieveUpdateDestroyCodeView(RetrieveUpdateDestroyContributionView):
         else:
             description = None
 
-        if data.has_key('declaration'):
+        if 'declaration' in data:
             if isinstance(data['declaration'], dict):
                 json_declaration = data['declaration']
                 declaration = json.dumps(json_declaration, indent=4)
@@ -141,7 +141,7 @@ class RetrieveUpdateDestroyCodeView(RetrieveUpdateDestroyContributionView):
             else:
                 raise serializers.ValidationError({'declaration': 'Invalid declaration data'})
 
-            if json_declaration.has_key('description'):
+            if 'description' in json_declaration:
                 if short_description is not None:
                     raise serializers.ValidationError({'short_description': 'A short description is already provided in the declaration'})
 
@@ -156,7 +156,7 @@ class RetrieveUpdateDestroyCodeView(RetrieveUpdateDestroyContributionView):
         if (short_description is not None) and (len(short_description) > self.model._meta.get_field('short_description').max_length):
             raise ValidationError({'short_description': 'Short description too long'})
 
-        if data.has_key('code'):
+        if 'code' in data:
             if not(isinstance(data['code'], six.string_types)):
                 raise ValidationError({'code': 'Invalid code data'})
             code = data['code']
@@ -241,7 +241,7 @@ class RetrieveUpdateDestroyCodeView(RetrieveUpdateDestroyContributionView):
 
         # Available fields (not returned by default):
         #    - html_description
-        if request.GET.has_key('fields'):
+        if 'fields' in request.GET:
             fields_to_return = request.GET['fields'].split(',')
         else:
             return Response(status=204)