def parse_abi_from_filename(filename):
  """This parses out the abi from a wheel filename.

  For example, `configparser-3.5.0-py2-abi3-any.whl` would return `abi3`.
  See https://www.python.org/dev/peps/pep-0425/#use for how wheel filenames are defined."""
  return filename.split("-")[-2]