Fix Redis Test (#5302)

python/ray/tests/test_ray_init.py

@@ -38,7 +38,7 @@ class TestRedisPassword(object):
         # Check that Redis connections require a password
         redis_client = redis.StrictRedis(
             host=redis_ip, port=redis_port, password=None)
-        with pytest.raises(redis.ResponseError):
+        with pytest.raises(redis.exceptions.AuthenticationError):
             redis_client.ping()
 
         # Check that we can connect to Redis using the provided password

python/setup.py

@@ -143,7 +143,7 @@ requires = [
     "colorama",
     "pytest",
     "pyyaml",
-    "redis",
+    "redis>=3.3.2",
     # NOTE: Don't upgrade the version of six! Doing so causes installation
     # problems. See https://github.com/ray-project/ray/issues/4169.
     "six >= 1.0.0",