install setproctitle from pypi instead of building from source

python/ray/__init__.py

@@ -37,7 +37,7 @@ pickle5_path = os.path.join(
     os.path.abspath(os.path.dirname(__file__)), "pickle5_files")
 sys.path.insert(0, pickle5_path)
 
-# Importing psutil & setproctitle. Must be before ray._raylet is initialized.
+# Importing psutil. Must be before ray._raylet is initialized.
 thirdparty_files = os.path.join(
     os.path.abspath(os.path.dirname(__file__)), "thirdparty_files")
 sys.path.insert(0, thirdparty_files)

python/ray/tests/test_actor.py

@@ -10,15 +10,12 @@ except ImportError:
 import sys
 import tempfile
 import datetime
+import setproctitle
 
 import ray
 import ray.test_utils
 import ray.cluster_utils
 
-# NOTE: We have to import setproctitle after ray because we bundle setproctitle
-# with ray.
-import setproctitle
-
 
 def test_caching_actors(shutdown_only):
     # Test defining actors before ray.init() has been called.

python/ray/tests/test_advanced_3.py

@@ -10,6 +10,7 @@ import time
 import numpy as np
 import pickle
 import pytest
+import setproctitle
 
 import ray
 import ray.ray_constants as ray_constants
@@ -17,7 +18,6 @@ import ray.util.accelerators
 import ray.cluster_utils
 import ray.test_utils
 from ray import resource_spec
-import setproctitle
 import subprocess
 
 from ray.test_utils import (check_call_ray, RayTestTimeoutException,

python/requirements.txt

@@ -23,6 +23,7 @@ py-spy >= 0.2.0
 pyyaml
 redis >= 3.5.0
 requests
+setproctitle
 
 ## setup.py extras
 atari_py

python/setup.py

@@ -143,6 +143,7 @@ install_requires = [
     "py-spy >= 0.2.0",
     "pyyaml",
     "requests",
+    "setproctitle",
     "redis >= 3.5.0",
     "opencensus",
     "prometheus_client >= 0.7.1",
@@ -270,7 +271,7 @@ def build(build_python, build_java):
     # that certain flags will not be passed along such as --user or sudo.
     # TODO(rkn): Fix this.
     if not os.getenv("SKIP_THIRDPARTY_INSTALL"):
-        pip_packages = ["psutil", "setproctitle"]
+        pip_packages = ["psutil"]
         subprocess.check_call(
             [
                 sys.executable, "-m", "pip", "install", "-q",