Help for ly2dvi

[Alberto Zanoni]

Hello,
        I think I'll have many problems to ask for a solutions. Before all, I'm
using Linux Mandrake, and when I digit

ly2dvi sinfonia.ly

(sinfonia.ly is a file in ...../lilypond-1.2.17/mutopia/L.Mozart/)

I obtain as answer

Traceback (innermost last):
  File "/usr/local/bin/ly2dvi", line 28, in ?
    import time
ImportError: No module named time 

Do I lack something ? What have i to do ? Thanks in advance,

                                                Alberto Zanoni
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