  [tox]
  envlist =
         {py35,py36,py37}-django22,
         {py36,py37,py38,py39}-django31,
         {py36,py37,py38,py39}-django32,
         {py38,py39}-{django40,djangomain},
         base,dist,docs,
  
  [travis:env]
  DJANGO =
      2.2: django22
 
</s> remove         'Programming Language :: Python :: 3.5',
 </s> add 
       {py36,py37,py38,py39,py310}-django32,
       {py38,py39,py310}-{django40,djangomain},
  [tox]
  envlist =
         {py35,py36,py37}-django22,
         {py36,py37,py38,py39}-django31,
       {py36,py37,py38,py39,py310}-django32,
       {py38,py39,py310}-{django40,djangomain},
       {py36,py37,py38,py39,py310}-django32,
       {py38,py39,py310}-{django40,djangomain},
         base,dist,docs,
  
  [travis:env]
  DJANGO =
      2.2: django22
keep keep keep keep replace replace keep keep keep keep keep
 Add 3.10 to tox.ini and setup.py 
tox.ini