Catherine Moroney wrote: > I have one script (Match1) that calls a Fortran executable as a > sub-process, and I want to write another script (Match4) that > spawns off several instances of Match1 in parallel and then waits > until they all finish running. The only way I can think of doing this > is to call it as a sub-process, rather than directly. > > I'm able to get Match1 working correctly in isolation, using the > subprocess.Popen command, but calling an instance of Match1 as a > subprocess spawned from Match4 isn't working. > > The command (stored as an array of strings) that I'm executing is: > > ['python ../src_python/Match1.py ', > '--file_ref=MISR_AM1_GRP_ELLIPSOID_GM_P228_O003571_BF_F03_0024.hdf ', > '--file_cmp=MISR_AM1_GRP_ELLIPSOID_GM_P228_O003571_DF_F03_0024.hdf ', > '--block_start=62 ', '--block_end=62 ', '--istep=16 ', "--chmetric='M2' > ", "--use_textid='true '"] >
If you want to avoid going by the shell, and you *should* for security reasons, you need to have each of your arguments separately in the list without the shell quoting and extra spaces, i.e. ['python', '../src_python/Match1.py', '--file_ref=xxxx.hdf', '--file_cmp=yyyy.hdf', '--block_start=xx', '--block_end=62', '--istep=16', '--chmetric=M2', '--use_texid=true'] Jeremy -- Jeremy Sanders http://www.jeremysanders.net/ -- http://mail.python.org/mailman/listinfo/python-list
