Python 2.7.2 (default, Jun 12 2011, 14:24:46) [MSC v.1500 64 bit (AMD64)] on win
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
'more' is not recognized as an internal or external command,
operable program or batch file.
more is a program used to display text in the terminal. I believe it generally comes with Windows installations. Python is trying to use it to display the help text, but it seems that your computer doesn't have it, or your python interpreter isn't able to use it.
Here's a list of common Windows shell commands, including more.