python 在線文檔和下載地址

http://docs.python.org/2/
http://www.python.org/ftp/python/2.7.3/python-2.7.3.msi
http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2
http://docs.python.org/3/
http://www.python.org/ftp/python/3.3.0/python-3.3.0.msi
http://www.python.org/ftp/python/3.3.0/Python-3.3.0.tar.bz2