Python: Flask: Fix: Update setup.py to match requirements.txt (#4205)

* Python: Flask: Fix: Update setup.py to match requirements.txt

* Regenerate samples python-flask & python-flask-python2

samples/openapi3/server/petstore/python-flask-python2/openapi_server/controllers/pet_controller.py

@@ -49,15 +49,13 @@ def find_pets_by_status(status):  # noqa: E501
     return 'do some magic!'
 
 
-def find_pets_by_tags(tags, max_count=None):  # noqa: E501
+def find_pets_by_tags(tags):  # noqa: E501
     """Finds Pets by tags
 
     Multiple tags can be provided with comma separated strings. Use tag1, tag2, tag3 for testing. # noqa: E501
 
     :param tags: Tags to filter by
     :type tags: List[str]
-    :param max_count: Maximum number of items to return
-    :type max_count: int
 
     :rtype: List[Pet]
     """

samples/openapi3/server/petstore/python-flask-python2/openapi_server/openapi/openapi.yaml

@@ -115,15 +115,6 @@ paths:
             type: string
           type: array
         style: form
-      - description: Maximum number of items to return
-        explode: true
-        in: query
-        name: maxCount
-        required: false
-        schema:
-          format: int32
-          type: integer
-        style: form
       responses:
         200:
           content:

samples/openapi3/server/petstore/python-flask-python2/openapi_server/test/test_pet_controller.py

@@ -89,8 +89,7 @@ class TestPetController(BaseTestCase):
 
         Finds Pets by tags
         """
-        query_string = [('tags', 'tags_example'),
-                        ('maxCount', 56)]
+        query_string = [('tags', 'tags_example')]
         headers = { 
             'Accept': 'application/json',
             'Authorization': 'Bearer special-key',

samples/openapi3/server/petstore/python-flask-python2/openapi_server/util.py

@@ -16,7 +16,7 @@ def _deserialize(data, klass):
     if data is None:
         return None
 
-    if klass in six.integer_types or klass in (float, str, bool):
+    if klass in six.integer_types or klass in (float, str, bool, bytearray):
         return _deserialize_primitive(data, klass)
     elif klass == object:
         return _deserialize_object(data)