[Tutor] how to extract number of files from directory
Ertl, John
john.ertl at fnmoc.navy.mil
Wed Oct 12 20:46:47 CEST 2005
Marc,
You can do most system type stuff in Python and it makes it much easier.
import glob
jpgList = glob.glob("*.jpg") # the glob allows you to use wild cards in the
search
jpgCount = len(jpgList)
This gives you a list of all files that end in .jpg. You can then do a
len(jpgList) to get the number of files
John
-----Original Message-----
From: Marc Buehler [mailto:marc_buehler at yahoo.com]
Sent: Wednesday, October 12, 2005 11:10 AM
To: tutor at python.org
Subject: [Tutor] how to extract number of files from directory
hi.
i'm new to Python ...
i would like to extract the number of JPG files
from the current directory and use that number
as a parameter in my python script.
i tried:
a = os.system('ls *JPG | wc -l')
when i do:
print a
i get '0'.
what am i missing?
marc
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