[Tutor] running a .exe

[Robin Buyer]

Ahhhhhh. That helps a lot. Thanks.
    -Robin
----- Original Message -----
From: "Kent Johnson" <kent37 at tds.net>
To: "Python Tutor" <tutor at python.org>
Sent: Thursday, December 22, 2005 7:46 PM
Subject: Re: [Tutor] running a .exe


> Robin Buyer wrote:
> > I created a small program to test os.system:
> >
> > import os.path
> > os.system("C:\Program Files\Internet Explorer\IEXPLORE.EXE")
> >
> > when i run this from the command line I get an error message:
> > 'C:\Program' is not recognized as an internal or external command,
operable
> > program or batch file.
> >
> > How do you put spaces into a path name?
>
> The same way you do if you are typing the command directly to the shell -
put it in
> quotes. So now there are two sets of quotes - one to tell Python it is a
string, and one
> to pass to the shell:
> os.system('"C:\Program Files\Internet Explorer\IEXPLORE.EXE"')
>
> Alternately use subprocess.call() which takes a list of command-line
parameters so it
> knows to quote the first arg:
>   >>> import subprocess
>   >>> subprocess.call([r'C:\Program Files\Internet
Explorer\IEXPLORE.EXE'])
>
> Also note that if you want to use paths with \ in them in Python strings
you should use a
> raw string, otherwise the \ start escape sequences that you don't intend:
> os.system(r'"C:\Program Files\Internet Explorer\IEXPLORE.EXE"')
>
> Kent
>
> PS please respond to the list.
>
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