[Tutor] Runing an external command?

[Magnus Lycka]

At 15:02 2002-10-10 +0100, James.Rocks@equant.com wrote:
>So my question is how do I run an external program and does the program
>wait until that program has finished execution or does it just carry on
>regardless?

host =3D 'www.python.org'
os.system('ping %s" % host)

Will wait for the ping to finish.

Obviously, if you want the output, your program
must wait:

resultList =3D os.popen('ping %s' % host).readlines()

If you don't want your program to wait, you should
run the following.
Windows: os.system('start ping %s" % host)
Unix:    os.system('ping %s &" % host)


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