Fix some code-quality warnings

.travis.yml

@@ -1,6 +1,7 @@
 language: python
 python:
   - "2.7"
+  - "3.6"
 install:
   - pip install coveralls
   - pip install -e '.[test]'

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Spreenauten GmbH
+Copyright (c) 2016-2017 Spreenauten GmbH
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

setup.py

@@ -55,7 +55,7 @@ def run(self):
     long_description=long_description,
     url='https://github.com/spreecode/python-sofort',
     author='Leonid Suprun',
-    author_email='mr.slay@gmail.com',
+    author_email='leonid@suprun.pw',
     license='MIT',
 
     # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
@@ -71,7 +71,9 @@ def run(self):
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
         'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7'
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.6',
     ],
 
     # What does your project relate to?

sofort/_version.py

@@ -1,2 +1,2 @@
-# Please, do not bump version above 0.x.x until it's open-sourced
-__version__ = '0.4.1'
+# Please, do not bump version above 0.x.x until it's finally awesome
+__version__ = '0.4.2'

sofort/model.py

@@ -22,17 +22,17 @@ def response(xmlstr):
 
 
 class ForcedListType(ListType):
-    def to_native(self, value):
-        return [self.field.to_native(item) for item in as_list(value)]
+    def to_native(self, value, **kwargs):
+        return [self.field.to_native(item, **kwargs) for item in as_list(value)]
 
 
 class SofortListType(ForcedListType):
     def __init__(self, field_name='', *args, **kwargs):
         ForcedListType.__init__(self, *args, **kwargs)
         self.field_name = field_name
 
-    def to_native(self, value):
-        return ForcedListType.to_native(self, value[self.field_name])
+    def to_native(self, value, **kwargs):
+        return ForcedListType.to_native(self, value[self.field_name], **kwargs)
 
 
 class Iso8601DateTimeType(DateTimeType):