java compile and execute Python Script

#!/usr/bin/python3.5
# in your case the python bin may be different!
import os
import sys
def main():
    retVal = os.system("javac " + sys.argv[1].split('.')[0]+'.java')
    #if the javac is able to compile the code properly it wll return 0 else some other value!
    if(retVal is 0):
        print('[+] Compiled Successfully')
        print('[+] Executing Java Application')
        os.system("java " + sys.argv[1].split('.')[0])
    else:
        print('[-] Not Compiled Successfully')

if(len(sys.argv) < 2):
    print("[-] need a .java file")
    print(":~$ javaPy ConsoleAppDemo.java")
else:
    main()