  [tox]
  envlist =
         {py27,py34,py35,py36}-django111,
         {py34,py35,py36,py37}-django20,
         {py35,py36,py37}-django21
         {py35,py36,py37}-django22
         {py36,py37}-djangomaster,
         base,dist,lint,docs,
 
</s> remove         self.assertEqual(unicode_repr(TestParentModelSerializer()), parent_expected)
 </s> add         self.assertEqual(repr(TestParentModelSerializer()), parent_expected) </s> remove             key = six.text_type(key)
 </s> add             key = str(key) </s> remove basepython = python2.7
 </s> add basepython = python3.7 </s> remove             path = urlparse.urlparse(link.url).path
 </s> add             path = parse.urlparse(link.url).path
       {py34,py35,py36}-django111,
  [tox]
  envlist =
       {py34,py35,py36}-django111,
         {py34,py35,py36,py37}-django20,
         {py35,py36,py37}-django21
         {py35,py36,py37}-django22
         {py36,py37}-djangomaster,
         base,dist,lint,docs,
keep keep replace keep keep keep keep keep
 Dropped Python 2 compatibility. (#6615)

Thanks to Jon Dufresne (@jdufresne) for review.

Co-authored-by: Asif Saif Uddin <auvipy@gmail.com>
Co-authored-by: Rizwan Mansuri <Rizwan@webbyfox.com> 
tox.ini