code: def _fetch_build_egg_no_warn(
      dist, req
  ):  # noqa: C901  # is too complex (16)  # FIXME
      import pkg_resources  # Delay import to avoid unnecessary side-effects
  
      # Ignore environment markers; if supplied, it is required.
      req = strip_marker(req)
      # Take easy_install options into account, but do not override relevant
      # pip environment variables (like PIP_INDEX_URL or PIP_QUIET); they'll
      # take precedence.
      opts = dist.get_option_dict("easy_install")
      if "allow_hosts" in opts:
          raise DistutilsError(
              "the `allow-hosts` option is not supported "
              "when using pip to install requirements."
          )
      quiet = (
          "PIP_QUIET" not in os.environ
          and "PIP_VERBOSE" not in os.environ
      )
      if "PIP_INDEX_URL" in os.environ:
          index_url = None
      elif "index_url" in opts:
          index_url = opts["index_url"][1]
      else:
          index_url = None
      find_links = (
          _fixup_find_links(opts["find_links"][1])[:]
          if "find_links" in opts
          else []
      )
      if dist.dependency_links:
          find_links.extend(dist.dependency_links)
      eggs_dir = os.path.realpath(dist.get_egg_cache_dir())
      environment = pkg_resources.Environment()
      for egg_dist in pkg_resources.find_distributions(eggs_dir):
          if egg_dist in req and environment.can_add(egg_dist):
              return egg_dist
      with tempfile.TemporaryDirectory() as tmpdir:
          cmd = [
              sys.executable,
              "-m",
              "pip",
              "--disable-pip-version-check",
              "wheel",
              "--no-deps",
              "-w",
              tmpdir,
          ]
          if quiet:
              cmd.append("--quiet")
          if index_url is not None:
              cmd.extend(("--index-url", index_url))
          for link in find_links or []:
              cmd.extend(("--find-links", link))
          # If requirement is a PEP 508 direct URL, directly pass
          # the URL to pip, as `req @ url` does not work on the
          # command line.
          cmd.append(req.url or str(req))
          try:
              subprocess.check_call(cmd)
          except subprocess.CalledProcessError as e:
              raise DistutilsError(str(e)) from e
          wheel = Wheel(glob.glob(os.path.join(tmpdir, "*.whl"))[0])
          dist_location = os.path.join(eggs_dir, wheel.egg_name())
          wheel.install_as_egg(dist_location)
          dist_metadata = pkg_resources.PathMetadata(
              dist_location, os.path.join(dist_location, "EGG-INFO")
          )
          dist = pkg_resources.Distribution.from_filename(
              dist_location, metadata=dist_metadata
          )
          return dist
  
file_path: catboost/contrib/python/setuptools/py3/setuptools/installer.py
imports: import glob
  import os
  import subprocess
  import sys
  import tempfile
  from distutils import log
  from distutils.errors import DistutilsError
  from functools import partial
  from .None import _reqs
  from .wheel import Wheel
  from .warnings import SetuptoolsDeprecationWarning
label_desc: Use image node_id 4 for calling a global function with example usage: _fetch_build_egg_no_warn(dist, req) and returns: dist, egg_dist