diff --git a/lib/python/ray/services.py b/lib/python/ray/services.py
index 985e99e81..41f79ea22 100644
--- a/lib/python/ray/services.py
+++ b/lib/python/ray/services.py
@@ -10,6 +10,8 @@ import config
 
 _services_env = os.environ.copy()
 _services_env["PATH"] = os.pathsep.join([os.path.dirname(os.path.abspath(__file__)), _services_env["PATH"]])
+# Make GRPC only print error messages.
+_services_env["GRPC_VERBOSITY"] = "ERROR"
 
 # all_processes is a list of the scheduler, object store, and worker processes
 # that have been started by this services module if Ray is being used in local
diff --git a/lib/python/ray/worker.py b/lib/python/ray/worker.py
index 696d520d2..091cc8c82 100644
--- a/lib/python/ray/worker.py
+++ b/lib/python/ray/worker.py
@@ -654,6 +654,8 @@ def init(start_ray_local=False, num_workers=None, num_objstores=None, scheduler_
       Exception: An exception is raised if an inappropriate combination of
         arguments is passed in.
   """
+  # Make GRPC only print error messages.
+  os.environ["GRPC_VERBOSITY"] = "ERROR"
   if driver_mode == raylib.PYTHON_MODE:
     # If starting Ray in PYTHON_MODE, don't start any other processes.
     pass
diff --git a/setup-env.sh b/setup-env.sh
index 1bc201a0c..f86348d2e 100644
--- a/setup-env.sh
+++ b/setup-env.sh
@@ -4,8 +4,7 @@ echo "Adding Ray to PYTHONPATH" 1>&2
 
 ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
 
-export GRPC_VERBOSITY=ERROR # make grpc only print error messages
-export PYTHONPATH="$ROOT_DIR/lib/python/:$ROOT_DIR/thirdparty/numbuf/build"
+export PYTHONPATH="$ROOT_DIR/lib/python/:$ROOT_DIR/thirdparty/numbuf/build:$PYTHONPATH"
 
 # Print instructions for adding Ray to your bashrc.
 unamestr="$(uname)"