ubuntu16.04纯净版-安装Python3.8.1/升级pip

Ubuntu 16.04  amd64 (64bit)(纯净版)

自带python2.7和python3.5

执行"whereis python"查看当前安装的python

[root@root ~]# whereis python
python: /usr/bin/python2.7 /usr/bin/python /usr/lib/python2.7 /usr/lib64/python2.7 /etc/python /usr/include/python2.7 /usr/share/man/man1/python.1.gz

 

 


 

 

0.配置依赖环境,如果不进行这步可能会出现一些问题

sudo apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev libsqlite3-dev

 

1.去官网下载Python-3.8.1.tar.xz

wget https://www.python.org/ftp/python/3.8.1/Python-3.8.1.tar.xz

 

2.解压下载的包

第一种方法

tar -xvJf  Python-3.8.1.tar.xz

第二种方法

#解压
xz -d Python-3.8.1.tar.xz
tar -xf Python-3.8.1.tar

 

3.进入解压后的目录

cd Python-3.8.1/

 

4.安装依赖(非必要,可跳过此步骤,如在5步出错在执行本步骤)

执行下列命令安装依赖过程中,如有提示,一律  y  。

sudo apt-get install python-dev
sudo apt-get install libffi-dev
sudo apt-get install libssl-dev
sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev

 

5.执行安装

./configure prefix=/usr/local/python3
make && make install

 

6.修改软连接(配置全局变量)

#将原来的链接备份
mv /usr/bin/python /usr/bin/python.bak
#添加python3的软链接
ln -s /usr/local/python3/bin/python3 /usr/bin/python
#测试是否安装成功了
python -V

 

7.安装/升级pip

执行安装

#这句是给(python2.7安装pip)
sudo apt-get install python-pip
#这句是给python3安装pip
sudo apt-get install python3-pip

执行升级

pip install --upgrade pip
pip3 install --upgrade pip

升级pip时出现了问题:

Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in <module>
    from pip import main

 修改一下pip配置

sudo vim /usr/bin/pip

改成

#原PIP配置文件
from pip import main  
if __name__ == '__main__':  
    sys.exit(main()) 

#修改为
from pip import __main__  //修改
if __name__ == '__main__':  
    sys.exit(__main__._main())//修改

再次执行ok!

 

参考博文:https://blog.csdn.net/t8116189520/article/details/81976755

https://blog.csdn.net/maizousidemao/article/details/102810681

https://blog.csdn.net/weixin_41754736/article/details/102762612

posted @ 2020-01-28 15:42  王钰  阅读(5094)  评论(0编辑  收藏  举报