Removing the .svn directories

I usually have this problem after coping a subversion downloaded directory tree. The .svn directories that are created in each directory are copied too. I created the following python script to get rid of them. You must be careful when using it because it deletes with no warning.

#!/usr/bin/env python

import shutil
import os

for root, dirs, files in os.walk (".", topdown=True):
    for name in dirs:
        if name == (".svn"):
            fileName = os.path.join (root, name)
            print fileName
            shutil.rmtree (fileName)