Python第三方库离线安装

机器A：能联网

机器B：内网

Python第三方库官网

机器A：

1. 在python虚拟环境中安装需要的第三方库

   [root@i-h0xe1oiq data]# mkvirtualenv -p /usr/local/bin/python3.9 env39
   (env39) [root@i-h0xe1oiq data]# pip3.9 install pymysql
   (env39) [root@i-h0xe1oiq data]# pip3.9 install requests
   

2. 导出第三方库名到文件

   (env39) [root@i-h0xe1oiq data]# pip3.9 freeze >requirements.txt
   (env39) [root@i-h0xe1oiq data]# cat requirements.txt 
   certifi==2021.10.8
   charset-normalizer==2.0.7
   idna==3.3
   PyMySQL==1.0.2
   requests==2.26.0
   urllib3==1.26.7
   

3. 下载离线包

   (env39) [root@i-h0xe1oiq data]# pip3.9 download -d packages -r requirements.txt
   (env39) [root@i-h0xe1oiq data]# ll
   total 8
   drwxr-xr-x 2 root root 4096 Oct 20 16:22 packages
   -rw-r--r-- 1 root root  103 Oct 20 16:21 requirements.txt
   (env39) [root@i-h0xe1oiq data]# ll packages/		# 下载的包都在packages目录下
   total 492
   -rw-r--r-- 1 root root 149195 Oct 20 16:22 certifi-2021.10.8-py2.py3-none-any.whl
   -rw-r--r-- 1 root root  38247 Oct 20 16:22 charset_normalizer-2.0.7-py3-none-any.whl
   -rw-r--r-- 1 root root  61160 Oct 20 16:22 idna-3.3-py3-none-any.whl
   -rw-r--r-- 1 root root  43828 Oct 20 16:22 PyMySQL-1.0.2-py3-none-any.whl
   -rw-r--r-- 1 root root  62251 Oct 20 16:22 requests-2.26.0-py2.py3-none-any.whl
   -rw-r--r-- 1 root root 138764 Oct 20 16:22 urllib3-1.26.7-py2.py3-none-any.whl
   

4. 将packages目录和requirements.txt文件复制到机器B上

机器B：

1. 安装第三方库

   [root@VM-8-6-centos data]# pip3.6 install --no-index --find-links=packages -r requirements.txt
   Collecting certifi==2021.10.8 (from -r requirements.txt (line 1))
   Collecting charset-normalizer==2.0.7 (from -r requirements.txt (line 2))
   Collecting idna==3.3 (from -r requirements.txt (line 3))
   Collecting PyMySQL==1.0.2 (from -r requirements.txt (line 4))
   Collecting requests==2.26.0 (from -r requirements.txt (line 5))
   Collecting urllib3==1.26.7 (from -r requirements.txt (line 6))
   Installing collected packages: certifi, charset-normalizer, idna, PyMySQL, urllib3, requests
   Successfully installed PyMySQL-1.0.2 certifi-2021.10.8 charset-normalizer-2.0.7 idna-3.3 requests-2.26.0 urllib3-1.26.7