os.system and command output

[A.M]

Hi,



How can I run an OS command and have the command's output (to stdout) in my
string variable?



For example in windows, this command should return a list of files within
directory:



os.system("DIR")



I am looking for an alternative function that returns the DIR command output
in a string



Thanks,

Alan

 

[Steve Holden]

Hi,



How can I run an OS command and have the command's output (to stdout) in my
string variable?



For example in windows, this command should return a list of files within
directory:



os.system("DIR")



I am looking for an alternative function that returns the DIR command output
in a string

Try:

s = os.popen("DIR").read()

regards
Steve

 

[A.M]

Try:

s = os.popen("DIR").read()

Thanks Steve.

Is there anyway I can get the exit code (what os.system returns) from
os.popen?

 

[Fredrik Lundh]

Is there anyway I can get the exit code (what os.system returns) from
os.popen?

you'd rather kill yourself than read the documentation, right?

http://www.python.org/doc/lib/os-newstreams.html#os-newstreams

"The exit status of the command (encoded in the format specified
for wait()) is available as the return value of the close() method
of the file object, except that when the exit status is zero
(termination without errors), None is returned."

</F>