new_contents: #!/usr/bin/env python
  """
  Download NumPy wheels from Anaconda staging area.
  
  """
  import sys
  import os
  import re
  import shutil
  import argparse
  
  import urllib3
  from bs4 import BeautifulSoup
  
  __version__ = '0.1'
  
  ANACONDA_INDEX = 'https://anaconda.org/multibuild-wheels-staging/numpy/files'
  ANACONDA_FILES = 'https://anaconda.org/multibuild-wheels-staging/numpy/simple'
  
  
  def get_wheel_names(version):
      """ Get wheel names from Anaconda HTML directory.
  
      This looks in the Anaconda multibuild-wheels-staging page and
      parses the HTML to get all the wheel names for a release version.
  
      Parameters
      ----------
      version : str
          The release version. For instance, "1.18.3".
  
      """
      tmpl = re.compile('^.*numpy-' + version + '.*\.whl$')
      http = urllib3.PoolManager(cert_reqs='CERT_REQUIRED')
      indx = http.request('GET', ANACONDA_INDEX)
      soup = BeautifulSoup(indx.data, 'html.parser')
      return soup.findAll(text=tmpl)
  
  
  def download_wheels(version, wheelhouse):
      """Download release wheels.
  
      The release wheels for the given NumPy version are downloaded
      into the given directory.
  
      Parameters
      ----------
      version : str
          The release version. For instance, "1.18.3".
      wheelhouse : str
          Directory in which to download the wheels.
  
      """
      wheel_names = get_wheel_names(version[0])
      http = urllib3.PoolManager(cert_reqs='CERT_REQUIRED')
      for wheel_name in wheel_names:
          wheel_url = os.path.join(ANACONDA_FILES, wheel_name)
          wheel_path = os.path.join(wheelhouse, wheel_name)
          with open(wheel_path, 'wb') as f:
              with http.request('GET', wheel_url, preload_content=False,) as r:
                  print(f"Downloading {wheel_name}")
                  shutil.copyfileobj(r, f)
  
  
  if __name__ == '__main__':
      parser = argparse.ArgumentParser()
      parser.add_argument(
          "version",
           help="NumPy version to download.")
      parser.add_argument(
          "-w", "--wheelhouse",
          default=os.path.join(os.getcwd(), "release", "installers"),
          help="Directory in which to store downloaded wheels\n"
               "[defaults to <cwd>/release/installers]")
  
      args = parser.parse_args()
  
      wheelhouse = os.path.expanduser(args.wheelhouse)
      download_wheels(args.version, wheelhouse)
  
subject: Add tool for downloading release wheels from Anaconda.