Resize all images in a folder based on the width

resizeimgs.py

#!/usr/bin/python
# usage python resizeimgs.py PATH WIDTH
import sys
from os import listdir, path
from PIL import Image

def getpath():
    try:
        inpath = sys.argv[1]
    except:
        raise Error("please input PATH : python resizeimgs.py PATH WIDTH")
    return inpath

def getwidth():
    try:
        inwidth = sys.argv[2]
    except:
        raise Error("please input WIDTH : python resizeimgs.py PATH WIDTH")
    return int(inwidth)

def getfiles(dir):
    return [path.join(dir, f) for f in listdir(dir) if path.isfile(path.join(dir, f))]

def resizeimgs(files, width):
    for f in files:
        try:
            img = Image.open(f)
        except IOError:
            continue
        fname, ext = path.splitext(f);
        outfile = fname + "." + str(width) + ext
        # resize
        img.thumbnail((width, width), Image.ANTIALIAS)
        img.save(outfile)
        print("resized : " + outfile)

files = getfiles(getpath())
width = getwidth()
resizeimgs(files, width)