Python script to rename files in directory, transforming spaces to hyphens and the chars to lowercase

rename.py

import os

""" 
Renames the filenames within the same directory to be Unix friendly
(1) Changes spaces to hyphens
(2) Makes lowercase (not a Unix requirement, just looks better ;)

Usage:
python rename.py
"""

path =  os.getcwd()
filenames = os.listdir(path)

for filename in filenames:
    os.rename(filename, filename.replace(" ", "-").lower())

@rdegges that does not make uppercase -> lowercase though.

how can i change only the first letter of a filename into uppercase??

how about removing leading space in multiple files in a directory?
i have many files in a directory and each one start with a space. so how to batch remove that?