哪个python不对齐系统可执行文件在虚拟世界里

Question

(ENV) willy@willy-X555LB:~/ENV/bin$ which python
/home/willy/ENV/bin/python
(ENV) willy@willy-X555LB:~/ENV/bin$ python
Python 3.5.2 (default, Nov 17 2016, 17:05:23) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> print(sys.executable)
/usr/bin/python3

怎么了？我在用Ubuntu16。在

我用以下命令创建了virtualenv

$ virtualenv -p /usr/bin/python3 ENV