old_contents: import argparse
  import logging
  import json
  import os
  import platform
  import shutil
  import struct
  import subprocess
  
  
  def get_platform():
      system = platform.system()
      machine = platform.machine()
      if system == "Linux":
          return f"manylinux_{machine}"
      elif system == "Darwin":
          # cibuildwheel sets ARCHFLAGS:
          # https://github.com/pypa/cibuildwheel/blob/5255155bc57eb6224354356df648dc42e31a0028/cibuildwheel/macos.py#L207-L220
          if "ARCHFLAGS" in os.environ:
              machine = os.environ["ARCHFLAGS"].split()[1]
          return f"macosx_{machine}"
      elif system == "Windows":
          if struct.calcsize("P") * 8 == 64:
              return "win_amd64"
          else:
              return "win32"
      else:
          raise Exception(f"Unsupported system {system}")
  
  
  parser = argparse.ArgumentParser(description="Fetch and extract tarballs")
  parser.add_argument("destination_dir")
  parser.add_argument("--cache-dir", default="tarballs")
  parser.add_argument("--config-file", default=os.path.splitext(__file__)[0] + ".json")
  args = parser.parse_args()
  logging.basicConfig(level=logging.INFO)
  
  # read config file
  with open(args.config_file, "r") as fp:
      config = json.load(fp)
  
  # create fresh destination directory
  logging.info("Creating directory %s" % args.destination_dir)
  if os.path.exists(args.destination_dir):
      shutil.rmtree(args.destination_dir)
  os.mkdir(args.destination_dir)
  
  for url_template in config["urls"]:
      tarball_url = url_template.replace("{platform}", get_platform())
  
      # download tarball
      tarball_name = tarball_url.split("/")[-1]
      tarball_file = os.path.join(args.cache_dir, tarball_name)
      if not os.path.exists(tarball_file):
          logging.info("Downloading %s" % tarball_url)
          if not os.path.exists(args.cache_dir):
              os.mkdir(args.cache_dir)
          subprocess.check_call(
              ["curl", "--location", "--output", tarball_file, "--silent", tarball_url]
          )
  
      # extract tarball
      logging.info("Extracting %s" % tarball_name)
      subprocess.check_call(["tar", "-C", args.destination_dir, "-xf", tarball_file])
  
new_contents: import argparse
  import logging
  import json
  import os
  import platform
  import shutil
  import struct
  import subprocess
  
  
  def get_platform():
      system = platform.system()
      machine = platform.machine()
      if system == "Linux":
          return f"manylinux_{machine}"
      elif system == "Darwin":
          # cibuildwheel sets ARCHFLAGS:
          # https://github.com/pypa/cibuildwheel/blob/5255155bc57eb6224354356df648dc42e31a0028/cibuildwheel/macos.py#L207-L220
          if "ARCHFLAGS" in os.environ:
              machine = os.environ["ARCHFLAGS"].split()[1]
          return f"macosx_{machine}"
      elif system == "Windows":
          if struct.calcsize("P") * 8 == 64:
              return "win_amd64"
          else:
              return "win32"
      else:
          raise Exception(f"Unsupported system {system}")
  
  
  parser = argparse.ArgumentParser(description="Fetch and extract tarballs")
  parser.add_argument("destination_dir")
  parser.add_argument("--cache-dir", default="tarballs")
  parser.add_argument("--config-file", default=os.path.splitext(__file__)[0] + ".json")
  args = parser.parse_args()
  logging.basicConfig(level=logging.INFO)
  
  # read config file
  with open(args.config_file, "r") as fp:
      config = json.load(fp)
  
  # create fresh destination directory
  logging.info("Creating directory %s" % args.destination_dir)
  if os.path.exists(args.destination_dir):
      shutil.rmtree(args.destination_dir)
  os.makedirs(args.destination_dir)
  
  for url_template in config["urls"]:
      tarball_url = url_template.replace("{platform}", get_platform())
  
      # download tarball
      tarball_name = tarball_url.split("/")[-1]
      tarball_file = os.path.join(args.cache_dir, tarball_name)
      if not os.path.exists(tarball_file):
          logging.info("Downloading %s" % tarball_url)
          if not os.path.exists(args.cache_dir):
              os.mkdir(args.cache_dir)
          subprocess.check_call(
              ["curl", "--location", "--output", tarball_file, "--silent", tarball_url]
          )
  
      # extract tarball
      logging.info("Extracting %s" % tarball_name)
      subprocess.check_call(["tar", "-C", args.destination_dir, "-xf", tarball_file])
  
subject: fix creating temporary directory for dependencies