我在 ubuntu 11.10。我安装了 python2.6 因为我必须在 virtualenv 中工作。
在命令行上,当我启动python时,默认是python2.6。
which python
/usr/local/bin/python
Python 2.6.8 (unknown, Jul 4 2012, 09:17:51)
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
我如何改回默认的python2.7?