Do not depend on flask-views package (#121)

The package only uses [1] which just sets ``self.args`` and ``self.kwargs`` that
are not used anywhere.

[1]: https://github.com/brocaar/flask-views/blob/master/flask_views/base.py#L5-L36

.circleci/config.yml

@@ -14,13 +14,13 @@ defaults: &defaults
   - checkout
   - run:
       name: Install dependencies
-      command: pipenv install -r $REQUIREMENTS_FILE nose
+      command: pip install --user -r $REQUIREMENTS_FILE nose
   - run:
       name: Lint
-      command: pipenv run flake8
+      command: flake8 flask_mongorest
   - run:
       name: Test
-      command: pipenv run nosetests
+      command: nosetests
 
 jobs:
   test-2.7:

flask_mongorest/views.py

@@ -1,14 +1,13 @@
 import json
+
 import mimerender
 import mongoengine
-
-from flask import request, render_template
-from werkzeug.exceptions import NotFound, Unauthorized
-
+from flask import render_template, request
+from flask.views import MethodView
+from flask_mongorest import methods
 from flask_mongorest.exceptions import ValidationError
 from flask_mongorest.utils import MongoEncoder
-from flask_mongorest import methods
-from flask_views.base import View
+from werkzeug.exceptions import NotFound, Unauthorized
 
 mimerender = mimerender.FlaskMimeRender()
 
@@ -50,7 +49,7 @@ def serialize_errors(e):
     else:
         return {'error': get_exception_message(e)}
 
-class ResourceView(View):
+class ResourceView(MethodView):
     resource = None
     methods = []
     authentication_methods = []
@@ -269,4 +268,3 @@ def has_change_permission(self, request, obj):
 
     def has_delete_permission(self, request, obj):
         return True
-

requirements.txt

@@ -5,6 +5,5 @@ python-dateutil
 sphinx
 cleancat>=0.3
 Flask>=0.9
-Flask-Views
 pymongo>=3.4
 flake8

requirements3.txt

@@ -5,7 +5,6 @@ mimerender
 python-dateutil
 sphinx
 Flask>=0.9
-Flask-Views
 pymongo
 flake8
 flake8-bugbear

setup.py

@@ -28,7 +28,6 @@
     zip_safe=False,
     platforms='any',
     setup_requires=[
-        'Flask-Views',
         'Flask-MongoEngine',
         'mimerender',
         'nose',