Another idea, python inside the score

<CsoundSynthesizer>
<CsInstruments>

instr 1
  prints "--- score in python ---\n"
endin

</CsInstruments>
<CsScore bin="python">

import sys
sys.stdout = open(sys.argv[1], 'w')
print "i1 0 1\n"

</CsScore>
</CsoundSynthesizer>

tito