Fix Tox tags & update dropbox copy client (#218)

* Fix Tox tags & update dropbox copy client
* Update travis to test newest versions of python as well
* Fix flaky linter issue

Author: rogebrd

.pylintrc

@@ -1,5 +1,5 @@
 [MESSAGES CONTROL]
-disable=C,R,file-ignored,fixme,locally-disabled,protected-access,useless-else-on-loop,unnecessary-pass
+disable=C,R,file-ignored,fixme,locally-disabled,protected-access,useless-else-on-loop,unnecessary-pass,raise-missing-from
 enable=useless-suppression
 
 [REPORTS]

.travis.yml

@@ -5,6 +5,9 @@ python:
     - pypy
     - "3.4"
     - "3.5"
+    - "3.6"
+    - "3.7"
+    - "3.8"
     - pypy3
 
 install:

dropbox/dropbox.py

@@ -728,7 +728,7 @@ def _get_dropbox_client_with_select_header(self, select_header_name, team_member
         new_headers = self._headers.copy() if self._headers else {}
         new_headers[select_header_name] = team_member_id
         return Dropbox(
-            self._oauth2_access_token,
+            oauth2_access_token=self._oauth2_access_token,
             oauth2_refresh_token=self._oauth2_refresh_token,
             oauth2_access_token_expiration=self._oauth2_access_token_expiration,
             max_retries_on_error=self._max_retries_on_error,
@@ -737,6 +737,9 @@ def _get_dropbox_client_with_select_header(self, select_header_name, team_member
             user_agent=self._raw_user_agent,
             session=self._session,
             headers=new_headers,
+            app_key=self._app_key,
+            app_secret=self._app_secret,
+            scope=self._scope,
         )
 
 class BadInputException(Exception):

dropbox/stone_validators.py

@@ -593,6 +593,7 @@ def get_default(self):
 class Nullable(Validator):
 
     def __init__(self, validator):
+        super(Nullable, self).__init__()
         assert isinstance(validator, (Primitive, Composite)), \
             'validator must be for a primitive or composite type'
         assert not isinstance(validator, Nullable), \

setup.py

@@ -72,6 +72,8 @@
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Software Development :: Libraries :: Python Modules',

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 
-envlist = py{27,34,35,36,py,py3},check,lint
+envlist = py{27,34,35,36,37,38,py,py3},check,lint
 skip_missing_interpreters = true
 
 [tox:travis]
@@ -10,6 +10,8 @@ pypy = lint
 3.4 = lint
 3.5 = lint
 3.6 = check, lint
+3.7 = check, lint
+3.8 = check, lint
 pypy3 = lint