insert spaces between Chinese characters and copy to clipboard

qq.py

import os


while True:
    join_by = ' ' * 3
    content = raw_input('say something: ')
    content_list = [content[i:i+3] for i in range(0, len(content), 3)]
    output = join_by.join(content_list)
    os.system("echo '%s' | pbcopy" % output)
    print 'copied "%s" to clipboard, now you can paste!' % output