请问一个干净的删除方法，这样python 3就不会被以前的版本干扰了。我不确定如何安装 python2.7，因为不是我做的。而且我是 Linux 的新手，所以我真的不知道我该怎么办......
这是我检查python版本时的信息。谢谢！！:)
administrator@TUBVLMF-AWR163:~$ python -v
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# /usr/bin/anaconda/lib/python2.7/site.pyc matches /usr/bin/anaconda/lib/python2.7/site.py
import site # precompiled from /usr/bin/anaconda/lib/python2.7/site.pyc
# /usr/bin/anaconda/lib/python2.7/os.pyc matches /usr/bin/anaconda/lib/python2.7/os.py
import os # precompiled from /usr/bin/anaconda/lib/python2.7/os.pyc
import errno # builtin
import posix # builtin
# /usr/bin/anaconda/lib/python2.7/posixpath.pyc matches /usr/bin/anaconda/lib/python2.7/posixpath.py
import posixpath # precompiled from /usr/bin/anaconda/lib/python2.7/posixpath.pyc
# /usr/bin/anaconda/lib/python2.7/stat.pyc matches /usr/bin/anaconda/lib/python2.7/stat.py
import stat # precompiled from /usr/bin/anaconda/lib/python2.7/stat.pyc
# /usr/bin/anaconda/lib/python2.7/genericpath.pyc matches /usr/bin/anaconda/lib/python2.7/genericpath.py
import genericpath # precompiled from /usr/bin/anaconda/lib/python2.7/genericpath.pyc
# …python ×1