"No module named script"怎么解决？

[luckypoem]

HI.

root@localhost:/pypress-site# ls
babel.cfg manage.py pypress requirements.txt
fcgi.py messages.pot README.md
root@localhost:/pypress-site# python manage.py createall
Traceback (most recent call last):
File "manage.py", line 7, in
from flaskext.script import Server, Shell, Manager, Command, prompt_bool
ImportError: No module named script
root@localhost:/pypress-site# pip install script
Downloading/unpacking script
Could not find any downloads that satisfy the requirement script
Cleaning up...
No distributions at all found for script
Storing debug log for failure in /root/.pip/pip.log
root@localhost:/pypress-site#