python mint 19 調整

$ which python
$ which python3
$ python -v
$ python3 -v
$ python

rm /usr/bin/python

rm /usr/local/bin/python

cd /usr/bin

ln -s /usr/bin/python3.2 /usr/bin/python

apt-get install python3-pip

rm /usr/local/bin/pip

rm -rf /usr/local/lib/python*