«

Hi All,

There are so many ways to execute a system call like,
getstatusoutput()

os.system()

fork()
os.execvp()

using popen

Of all these, which is the best to use ( interms of speed and
resources) ?

--
Jagadeesh Jagarlamudi
Btech 3rd year student.
IIIT - Hyd,
Gachibouly, Hyderabad

On Sat, 6 Mar 2004 00:06:14 +0530 (IST), Jagarlamudi Jagadeesh <> wrote:
>
>
> Hi All,
>
> There are so many ways to execute a system call like,
> getstatusoutput()
>
> os.system()
>
> fork()
> os.execvp()
>
> using popen

And also os.spawnv*(), which unlike fork/exec work on some non-Unixes.

> Of all these, which is the best to use ( interms of speed and
> resources) ?

It depends Some of these go through the shell (which may give you features
you want, or features you *don't* want). I'd say the resources wasted on
executing a shell are almost always negligable; you should probably make a
decision based on functionality instead.

/Jorgen

--
// Jorgen Grahn <jgrahn@ ''If All Men Were Brothers,
\X/ algonet.se> Would You Let One Marry Your Sister?''