set minimum required numpy version to one with 3.8 wheels.

* fix lints

setup.py

@@ -1,13 +1,9 @@
-import inspect
 import os
-import platform
-import re
 import subprocess
 import sys
 
 from setuptools import setup, Extension
 from setuptools.command.build_ext import build_ext
-from distutils.version import LooseVersion
 
 
 MIN_CPU_CORES = 2
@@ -42,7 +38,7 @@ def initialize_options(self):
 
  def run(self):
  try:
- out = subprocess.check_output(["cmake", "--version"])
+ subprocess.check_output(["cmake", "--version"])
  except OSError:
  raise RuntimeError(
  "CMake must be installed to build the following extensions: "
@@ -96,11 +92,8 @@ def build_extension(self, ext):
 # nearly verbatim from how h5py handles is
 install_requires = [
  # We only really aim to support NumPy & Python combinations for which
- # there are wheels on PyPI (e.g. NumPy >=1.17.5 for Python 3.8).
- # But we don't want to duplicate the information in oldest-supported-numpy
- # here, and if you can build an older NumPy on a newer Python
- # NumPy 1.14.5 is the first with wheels for Python 3.7, our minimum Python.
- "numpy >=1.14.5",
+ # there are wheels on PyPI (e.g. NumPy >=1.17.3 for Python 3.8).
+ "numpy>=1.17.3",
 ]
 
 setup_requires = [