File _service of Package python3

<?xml version="1.0" ?>
<services>
  <service name="download_url">
    <param name="protocol">http</param>
    <param name="host">www.python.org</param>
    <param name="path">/ftp/python/3.1.3/Python-3.1.3.tar.bz2</param>
  </service>
  <service name="verify_file">
    <param name="file">_service:download_url:Python-3.1.3.tar.bz2</param>
    <param name="verifier">sha256</param>
    <param name="checksum">77f6f41a51be4ca85d83670405c8281dd1237bb00d8be8a7560cb3ccdf5558cb</param>
  </service>
</services>