I can call python script from java if de python script only does not contains other import package,if I call Python script contains import package(like numpy),I got no output and have no error message to show.I invoke Python like this:
Process rt=Runtime.getR untime().exec(" python /usr/tmp/"+scriptNam e + " " +parameter);
Process rt=Runtime.getR untime().exec(" python /usr/tmp/"+scriptNam e + " " +parameter);