ubuntu下安装python

1．去官网下，https://www.python.org/downloads/source/

２．右键解压缩

３．打开README.rst

４．在里面找到命令，大概相似这样

On Unix, Linux, BSD, macOS, and Cygwin::

    ./configure
    make
    make test
    sudo make install

５．make install失败参考　https://www.cnblogs.com/jellydong/p/7724169.html