_site_packages_dirs = []
if _site.ENABLE_USER_SITE and _site.USER_SITE is not None:
  _site_packages_dirs += [_site.USER_SITE]
_site_packages_dirs += [p for p in _sys.path if "site-packages" in p]
if "getsitepackages" in dir(_site):
  _site_packages_dirs += _site.getsitepackages()

for _scheme in _sysconfig.get_scheme_names():
  for _name in ["purelib", "platlib"]:
    _site_packages_dirs += [_sysconfig.get_path(_name, _scheme)]