Traceback (most recent call last):
  File "/usr/bin/pycentral", line 1593, in <module>
    main()
  File "/usr/bin/pycentral", line 1587, in main
    rv = action.run(global_options)
  File "/usr/bin/pycentral", line 1075, in run
    requested = pyversions.requested_versions_for_runtime(version_field, version_only=True)
  File "/usr/share/pycentral-data/pyversions.py", line 172, in requested_versions_for_runtime
    vinfo = parse_versions(vstring)
  File "/usr/share/pycentral-data/pyversions.py", line 58, in parse_versions
    raise ValueError, 'error parsing Python-Version attribute'
ValueError: error parsing Python-Version attribute