如果在 ubuntu 下安装包，分在让能想到如下命令行操作：

zhangji16@zhangji16vm:~$ sudo apt-get install python3-pip

[sudo] zhangji16 的密码：

正在读取软件包列表... 完成

正在分析软件包的依赖关系树

正在读取状态信息... 完成

python3-pip 已经是最新版 (8.1.1-2ubuntu0.4)。

下列软件包是自动安装的并且现在不需要了：

libdbusmenu-gtk4 libllvm3.8 libmircommon5 libqmi-glib1 linux-headers-4.4.0-112 linux-headers-4.4.0-112-generic

linux-headers-4.4.0-116 linux-headers-4.4.0-116-generic linux-headers-4.4.0-119 linux-headers-4.4.0-119-generic

linux-headers-4.4.0-121 linux-headers-4.4.0-121-generic linux-headers-4.4.0-124 linux-headers-4.4.0-124-generic

linux-headers-4.4.0-127 linux-headers-4.4.0-127-generic linux-headers-4.4.0-128 linux-headers-4.4.0-128-generic

linux-headers-4.4.0-134 linux-headers-4.4.0-134-generic linux-headers-4.4.0-135 linux-headers-4.4.0-135-generic

linux-headers-4.4.0-138 linux-headers-4.4.0-138-generic linux-headers-4.4.0-31 linux-headers-4.4.0-31-generic

linux-image-4.4.0-112-generic linux-image-4.4.0-116-generic linux-image-4.4.0-119-generic linux-image-4.4.0-121-generic

linux-image-4.4.0-124-generic linux-image-4.4.0-127-generic linux-image-4.4.0-128-generic linux-image-4.4.0-134-generic

linux-image-4.4.0-135-generic linux-image-4.4.0-138-generic linux-image-4.4.0-31-generic linux-image-extra-4.4.0-112-generic

linux-image-extra-4.4.0-116-generic linux-image-extra-4.4.0-119-generic linux-image-extra-4.4.0-121-generic

linux-image-extra-4.4.0-124-generic linux-image-extra-4.4.0-127-generic linux-image-extra-4.4.0-128-generic

linux-image-extra-4.4.0-134-generic linux-image-extra-4.4.0-135-generic linux-image-extra-4.4.0-138-generic

linux-image-extra-4.4.0-31-generic ubuntu-core-launcher

使用'sudo apt autoremove'来卸载它(它们)。

升级了 0 个软件包，新安装了 0 个软件包，要卸载 0 个软件包，有 65 个软件包未被升级。

---------------------

作者：一起交流

来源：CSDN

原文：https://blog.csdn.net/m0_37329910/article/details/86568811

版权声明：本文为博主原创文章，转载请附上博文链接！

似乎的我版本提醒我已经安装好了，那么我们 check 一下版本

zhangji16@zhangji16vm:~$ pip3 --version

程序“pip3”尚未安装。 您可以使用以下命令安装：

sudo apt install python3-pip

解决办法：

zhangji16@zhangji16vm:~/c_study/test$ wget https://bootstrap.pypa.io/get-pip.py

--2019-01-21 08:49:18-- https://bootstrap.pypa.io/get-pip.py

正在解析主机 bootstrap.pypa.io (bootstrap.pypa.io)... 151.101.76.175, 2a04:4e42:12::175

正在连接 bootstrap.pypa.io (bootstrap.pypa.io)|151.101.76.175|:443... 已连接。

已发出 HTTP 请求，正在等待回应... 200 OK

长度： 1661676 (1.6M) [text/x-python]

正在保存至: “get-pip.py”

get-pip.py 100%[==========================================================>] 1.58M 337KB/s in 5.1s

2019-01-21 08:49:24 (316 KB/s) - 已保存 “get-pip.py” [1661676/1661676])

---------------------

作者：一起交流

来源：CSDN

原文：https://blog.csdn.net/m0_37329910/article/details/86568811

版权声明：本文为博主原创文章，转载请附上博文链接！

然后

zhangji16@zhangji16vm:~/c_study/test$ sudo python3 get-pip.py

The directory '/home/zhangji16/.cache/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

The directory '/home/zhangji16/.cache/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.

Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple

Collecting pip

Downloading https://pypi.tuna.tsinghua.edu.cn/packages/c2/d7/90f34cb0d83a6c5631cf71dfe64cc1054598c843a92b400e55675cc2ac37/pip-18.1-py2.py3-none-any.whl (1.3MB)

100% |████████████████████████████████| 1.3MB 13.8MB/s

Installing collected packages: pip

Found existing installation: pip 9.0.1

Uninstalling pip-9.0.1:

Successfully uninstalled pip-9.0.1

Successfully installed pip-18.1

zhangji16@zhangji16vm:~/c_study/test$ pip3 -V

pip 18.1 from /usr/local/lib/python3.5/dist-packages/pip (python 3.5)

---------------------

作者：一起交流

来源：CSDN

原文：https://blog.csdn.net/m0_37329910/article/details/86568811

版权声明：本文为博主原创文章，转载请附上博文链接！

解决！