Revert updates to python test versions.

opened issue with travis about the out of date python versions.

Author: rouilj

.travis.yml

@@ -22,12 +22,11 @@ dist:
 #  - pypy3
 python:
   - 2.7
-  - 3.10.4
+  - 3.10.0
   - 3.9
   - 3.8
   - 3.6
   - nightly
-  - 3.11
 
 services:
   - mysql
@@ -36,7 +35,6 @@ services:
 jobs:
     allow_failures:  # nightly not ready for prime time yet.
       - python: nightly
-      - python: 3.11
       - python: pypy3
 
 addons: