Python: subprocess and running a bash script with multiple arguments -

How do I know about running a bash script using the subprocess module, for which I have many arguments?

This is what I am currently using:

  subprocess. POPEAN (['/ my / file / path / programname.sh', 'arg1 arg2% s'% arg3], \ shell = true)   
 Do not take any parameters in the Bash script appears to be. No insights is much appreciated!   
 
 
 Pass arguments as a list, see:  
  Import subprocess subprocesses. (['/ My / file / path / programname.', 'Arg1', 'arg2', arg3])   
 If  arg3  is not string;  check_call () :  arg3 = str (arg3) . Convert it to string before going through   .