Support Python 3.5

.travis.yml

@@ -5,6 +5,7 @@ python:
   - "2.7"
   - "3.3"
   - "3.4"
+  - "3.5"
 
 env:
   - WTFORMS_VERSION=1

flask_admin/model/base.py

@@ -2170,7 +2170,7 @@ class BaseModelView(BaseView, ActionsMixin):
 
         # prevent validation issues due to submitting a single field
         # delete all fields except the submitted fields and csrf token
-        for field in form:
+        for field in list(form):
             if (field.name in request.form) or (field.name == 'csrf_token'):
                 pass
             else: