Mac OS Xとかでファイルとディレクトリの拡張属性xattrを再帰的にすべて消す高速なPythonスクリプトdelxattr.py

delxattr.py

#!/usr/bin/env python
# delxattr.py recursively removes all extended attributes (xattr) from
# all files and directories under the current or given directory.
# In the latest Mac OS X, you can do the same thing with "xattr -rc".
# See a help of xattr with "xattr -h". 
# Author: Takeshi NISHIMATSU
# Gist: https://gist.github.com/t-nissie/8491009
# Example1$ delxattr.py
# Example2$ delxattr.py ../foo
# Example3$ delxattr.py ~/foo
# Example4$ delxattr.py /tmp/foo/bar
# Copying: delxattr.py is distributed in the hope that it will be
#          useful, but WITHOUT ANY WARRANTY. You can copy, modify and
#          redistribute delxattr.py, but only under the conditions described
#          in the GNU General Public License (the "GPL"). For more detail,
#          see http://www.gnu.org/licenses/gpl.html .
##
import sys
import os
import xattr

try:
    dir = sys.argv[1]
except IndexError:
    dir = "."

for dpath,dnames,fnames in os.walk(dir):
    for fname in dnames+fnames:
        f = os.path.join(dpath,fname)
        if os.path.islink(f):
            continue
        xattr.xattr(f).clear()