file - Python: how to run a command while using a defined variable? -

i'm beginner python , i'm trying list contents of directory defined variable no avail.

this code:

#!/usr/bin/python import os  location = "/home/itaig/testdir" command = os.system('ls -l')," location" 

my aim count number of files in location , print number.

how can achieved?

edit #1:

in bash i'd ls -l $location | wc -l , equivalent in python?

in case, i've looked @ links comments wasn't able work... can please show me example?

thanks

you can use os.listdir. platform independent os module handle low level work

print len(os.listdir(location))