Removing lots-of-pythons container (#1827)

Author: chayim

CONTRIBUTING.md

@@ -32,7 +32,7 @@ Here's how to get started with your code contribution:
 
 1.  Create your own fork of redis-py
 2.  Do the changes in your fork
-3.  
+3.
     *Create a virtualenv and install the development dependencies from the dev_requirements.txt file:*
 
         a.  python -m venv .venv
@@ -69,12 +69,12 @@ configuration](https://redis.io/topics/sentinel).
 
 ## Testing
 
-Call `invoke tests` to run all tests, or `invoke all-tests` to run linters 
-tests as well. With the 'tests' and 'all-tests' targets, all Redis and 
-RedisCluster tests will be run. 
+Call `invoke tests` to run all tests, or `invoke all-tests` to run linters
+tests as well. With the 'tests' and 'all-tests' targets, all Redis and
+RedisCluster tests will be run.
 
-It is possible to run only Redis client tests (with cluster mode disabled) by 
-using `invoke standalone-tests`; similarly, RedisCluster tests can be run by using 
+It is possible to run only Redis client tests (with cluster mode disabled) by
+using `invoke standalone-tests`; similarly, RedisCluster tests can be run by using
 `invoke cluster-tests`.
 
 Each run of tox starts and stops the various dockers required. Sometimes
@@ -85,9 +85,7 @@ tests against multiple versions of python. Feel free to test your
 changes against all the python versions supported, as declared by the
 tox.ini file (eg: tox -e py39). If you have the various python versions
 on your desktop, you can run *tox* by itself, to test all supported
-versions. Alternatively, as your source code is mounted in the
-**lots-of-pythons** docker, you can start exploring from there, with all
-supported python versions!
+versions.
 
 ### Docker Tips
 

tox.ini

@@ -73,12 +73,6 @@ ports =
     36379:6379/tcp
 healtcheck_cmd = python -c "import socket;print(True) if 0 == socket.socket(socket.AF_INET, socket.SOCK_STREAM).connect_ex(('127.0.0.1',36379)) else False"
 
-[docker:lots-of-pythons]
-name = lots-of-pythons
-image = redisfab/lots-of-pythons:latest
-volumes =
-    bind:rw:{toxinidir}:/data
-
 [docker:redis_cluster]
 name = redis_cluster
 image = redisfab/redis-py-cluster:6.2.6-buster