下载python2 (https://blog.csdn.net/weixin_40671425/article/details/84587762)
wget https://www.python.org/ftp/python/2.7.15/Python-2.7.15.tgz
tar -xzvf Python-2.7.15.tgz
cd Python-2.7.15
# # ./configure --prefix=/usr/local/python-2.7.15 #指定安装路径
./configure #不指定安装路径
make
sudo make install
#下载pip
wget https://pypi.org/project/pip/9.0.1
tar -zxvf pip-9.0.1.tar.gz
cd pip-9.0.1
python2.7 setup.py install
#下载setuptools
sudo wget http://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz
tar -xvf setuptools-0.6c11.tar.gz
cd setuptools-0.6c11
sudo python setup.py build
sudo python setup.py install
#重新安装pip
cd pip-9.0.1
sudo python2 setup.py install
查看安装路径
which python2
or whereis python2
来源https://www.cnblogs.com/cwp-bg/p/7701231.html
sudo apt install python-virtualenv
# 创建虚拟环境，python2是虚拟环境名称；/usr/bin/python2 python路径
virtualenv -p /usr/local/bin/python2 python2
#激活python2环境
source /mnt/g/ubuntu_software/python2/bin/activate
#退出
deactivate
