Centos7离线安装Python3及request模块

Python3 默认不支持OpenSSL 1.1.1+以下版本，如果OpenSSL版本过低会提示以下报错ImportError: urllib3 v2 only supports OpenSSL 1.1.1+, currently the ‘ssl‘ module is compiled with ‘O 本次离线安装同时解决Python3依赖OpenSSL版本问题

编译安装OpenSSL

wget https://www.openssl.org/source/openssl-1.1.1a.tar.gz
tar -xzvf openssl-1.1.1a.tar.gz
cd openssl-1.1.1a
./config --prefix=/usr/local/openssl-1.1.1a
make
make install

添加ld.so.conf

echo "/usr/local/openssl-1.1.1a/lib/" >> /etc/ld.so.conf
ldconfig

不需要替换OpenSSL，直接在Python包中引用即可

[root@kafka-manager bin]# cd /usr/local/openssl-1.1.1a/bin
[root@kafka-manager bin]# ./openssl version
OpenSSL 1.1.1a  20 Nov 2018 (Library: OpenSSL 1.1.1k  FIPS 25 Mar 2021)

编译Python

编译Python依赖zlib-devel，需要自行提前本地yum安装

 yum install zlib-devel

下载并编译Python3

wget https://www.python.org/ftp/python/3.8.9/Python-3.8.9.tgz
tar xf Python-3.8.9.tgz
cd Python-3.8.9
./configure --prefix=/opt/python3.8  --with-openssl=/usr/local/openssl-1.1.1a
make && make install

验证服务

验证Python3是否正常

[root@kafka-manager python3.8]# /opt/python3.8/bin/python3 -V
Python 3.8.9

验证Pip3是否正常

[root@kafka-manager python3.8]# /opt/python3.8/bin/pip3 -V
pip 20.2.3 from /opt/python3.8/lib/python3.8/site-packages/pip (python 3.8)

离线安装requests

我们找台有外网的机器，提前下载依赖包

/opt/python3.8/bin/pip3 download -d packages requests

在当前目录会生成package目录

[root@kafka-manager python3.8]# cd packages/
[root@kafka-manager packages]# ls
certifi-2025.1.31-py3-none-any.whl          idna-3.10-py3-none-any.whl            urllib3-1.26.20-py2.py3-none-any.whl
charset_normalizer-2.0.12-py3-none-any.whl  requests-2.27.1-py2.py3-none-any.whl

导入package包，进入package目录，导入离线包

[root@kafka-manager packages]# /opt/python3.8/bin/pip3 install *.whl
Processing ./certifi-2025.1.31-py3-none-any.whl
Processing ./charset_normalizer-3.4.1-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
Processing ./idna-3.10-py3-none-any.whl
Processing ./requests-2.32.3-py3-none-any.whl
Processing ./urllib3-2.2.3-py3-none-any.whl
Installing collected packages: certifi, charset-normalizer, idna, urllib3, requests
Successfully installed certifi-2025.1.31 charset-normalizer-3.4.1 idna-3.10 requests-2.32.3 urllib3-2.2.3

查看现有包

[root@kafka-manager packages]# /opt/python3.8/bin/pip3 list
Package            Version
------------------ ---------
certifi            2025.1.31
charset-normalizer 3.4.1
idna               3.10
jsons              1.6.3
pip                20.2.3
requests           2.32.3
setuptools         49.2.1
typish             1.9.3
urllib3            2.2.3