The os module in Python has a rename() function that helps in changing the name of the directory:

>>> os.rename('work', 'work1')
>>> os.listdir()
['Public', 'work1', 'python_learning', '.ICEauthority', '.python_history', '.bashrc', 'Pictures', '.gnupg', '.cache', '.bash_logout', '.sudo_as_admin_successful', '.bash_history', '.config', '.viminfo', 'Desktop', 'Documents', 'examples.desktop', 'Videos', '.ssh', 'Templates', '.profile', 'dir', '.pam_environment', 'Downloads', '.local', '.dbus', 'Music', '.mozilla']
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