Hello I'm trying to use the prince in centos with python, but I can't get a output file
p = Popen(["prince","--verbose","","1_i.pdf" ], stdin=PIPE)
in command line it works, but in python script I have got nothin, may be need a addition modules for python?

How about this:

p = Popen(["prince","--verbose","-","-o","1_i.pdf" ], stdin=PIPE)