<build xmlns:python="http://bitten.cmlenz.net/tools/python"
       xmlns:sh="http://bitten.cmlenz.net/tools/sh">

  <step id="environment" title="Record environment information">
    <sh:exec executable="python"
      args="-c 'import platform; print &quot;Python:&quot;, platform.python_version()'" />
    <sh:exec executable="python"
      args="-c 'import trac; print &quot;Trac:&quot;, trac.__version__'" />
  </step>

</build>

