message: Filter out None of site.USER_SITE in api_template_v1.__init__.py
diff: @@ -126,7 +126,7 @@ from tensorflow.python.lib.io import file_io as _fi
  # Get sitepackages directories for the python installation.
  _site_packages_dirs = []
  -_site_packages_dirs += [_site.USER_SITE]
  +_site_packages_dirs += [] if _site.USER_SITE is None else [_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()
  