Remove setup.py dependence on packaging. (#7714)

python/ray/parameter.py

@@ -1,7 +1,6 @@
 import logging
 
 import numpy as np
-from packaging import version
 
 import ray.ray_constants as ray_constants
 
@@ -208,6 +207,9 @@ def _check_usage(self):
  raise DeprecationWarning(
  "The redirect_output argument is deprecated.")
 
- if version.parse(np.__version__) < version.parse("1.16.0"):
+ # Parse the numpy version.
+ numpy_version = np.__version__.split(".")
+ numpy_major, numpy_minor = int(numpy_version[0]), int(numpy_version[1])
+ if numpy_major <= 1 and numpy_minor < 16:
  logger.warning("Using ray with numpy < 1.16.0 will result in slow "
  "serialization. Upgrade numpy if using with ray.")

python/setup.py

@@ -171,9 +171,9 @@ def find_version(*filepath):
 
 
 requires = [
- "numpy >= 1.16", "filelock", "jsonschema", "click", "colorama",
- "packaging", "pyyaml", "redis >= 3.3.2", "protobuf >= 3.8.0",
- "py-spy >= 0.2.0", "aiohttp", "google", "grpcio"
+ "numpy >= 1.16", "filelock", "jsonschema", "click", "colorama", "pyyaml",
+ "redis >= 3.3.2", "protobuf >= 3.8.0", "py-spy >= 0.2.0", "aiohttp",
+ "google", "grpcio"
 ]
 
 setup(