Howto Launch a windows application ?

[stef mientki]

I finally found out what was wrong:

stef mientki wrote:
> hello,
>
> I'm trying to launch a windows application,
> but as many others on this list, I've some trouble.
> I read some other threads about this topic,
> but sorry, I still don't understand all this (never heard of pipes).
>
> When I use a batch file, I can launch the bat-file from python,
> and the windows application launched from the batchfile is run perfectly.
>
> Now when I try to run the same windows application from Popen or call,
> nothing happens (or at least it's very fast and produces not the 
> expected output).
>
> Please enlighten me, preferable in "windows-terminology"  ;-)
>
> thanks,
> Stef Mientki
>
> from subprocess import *
>
> cmd =[]
> cmd.append ( 'D:\\PIC-tools\\JALxxx\\jalv2_3.exe' )
> cmd.append ( '-long-start' )
> cmd.append ( '-d')
> cmd.append ( '-clear' )
> cmd.append ( '-sD:\\PIC-tools\\JAL\\libs2' )
> cmd.append ( 
> 'd:\\pic-tools\\jal\\programs\\test_rs232\\test_rs232_hw.jal' )
> cmd.append ( '>d:\\data_actueel\\d7_test_browser\\temp.log' )
>
> # DOESN'T WORK
> result = call ( cmd )
>
> # Both Popen and call work
> cmd = [ 'd:\\data_actueel\\d7_test_browser\\JALcc.bat' ]
> #output = Popen ( cmd )
> result = call ( cmd )
> print result
>
subprocess performs double quoting (necessary for paths with spaces) 
automatically.
Therefor both the following lines:
    cmd.append ( '-sD:\\PIC-tools\\JAL\\libs2' )
    cmd.append ( '>d:\\data_actueel\\d7_test_browser\\temp.log' )
should become
    cmd.append ( '-s' )
    cmd.append ( ' D:\\PIC-tools\\JAL\\libs2' )
    cmd.append ( '>' )
    cmd.append ( 'd:\\data_actueel\\d7_test_browser\\temp.log' )
then everything works perfect, also with the convenience call "call"
and the redirection.

thank you all for the hints,
cheers,
Stef Mientki