腾讯云服务器centos7安装python3.7+，解决ssl问题

使用requests模块访问百度&＃xff0c;报错如下&＃xff1a;
requests.exceptions.SSLError: HTTPSConnectionPool(host&＃61;&＃39;www.baidu.com&＃39;, port&＃61;443): Max retries exceeded with url: / (Caused by SSLError("Can&＃39;t connect to HTTPS URL because the SSL module is not available."))

经过反复测试认为&＃xff0c;是原生openssl模块太老导致。所以需要重装。

尝试了yum update等方式&＃xff0c;全部无效。故此只能编译

wget https://www.openssl.org/source/openssl-1.1.1e.tar.gz
二、安装编译依赖环境

yum -y install zlib zlib-devel bzip2 bzip2-devel ncurses ncurses-devel readline readline-devel openssl openssl-devel openssl-static xz lzma xz-devel sqlite sqlite-devel gdbm gdbm-devel tk tk-devel gcc
三、解压代码

tar -zxvf openssl-1.1.1e.tar.gz
cd openssl-1.1.1e/
四、配置编译环境并编译

./config --prefix&＃61;/usr/local/openssl no-zlib
make && make install
五、备份原有文件

mv /usr/bin/openssl /usr/bin/openssl.bak
mv /usr/include/openssl/ /usr/include/openssl.bak
六、创建软连接

ln -s /usr/local/openssl/include/openssl /usr/include/openssl
ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/local/lib64/libssl.so
ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
echo "/usr/local/openssl/lib" >> /etc/ld.so.conf
七、查看版本

ldconfig -v
openssl version
八、下载python安装包&＃xff0c;以3.11为例

wget https://www.python.org/ftp/python/3.11.2/Python-3.11.2.tgz
九、解压安装包并进入目录

tar zxf Python-3.11.2.tgz
cd Python-3.11.2/
十、指定编译环境

我这里指向了python3.11目录&＃xff0c;大家也可以指定python3目录&＃xff0c;因为我想保留旧有的3.6&＃xff0c;所以指向了3.11。如果想指向python3&＃xff0c;可以将下述的所有3.11改成3即可。下述所有步骤涉及到的代码&＃xff0c;直接改

./configure --prefix&＃61;/usr/local/python3.11 --with-openssl&＃61;/usr/local/openssl
十一、编译并创建软连接

make && make install
ln -s /usr/local/python3.11/bin/python3.11 /usr/bin/python3.11
ln -s /usr/local/python3.11/bin/pip3 /usr/bin/pip3.11
十二、安装requests包&＃xff0c;并测试是否正常

pip3.11 install requests

进入python3.11

python3.11

执行下述代码

import requests
requests.get("https://www.baidu.com/")

如响应如下&＃xff0c;则安装成功

退出

exit()

大功告成

引用链接&＃xff1a;centos7升级python3(解决ssl报错) - 爱码网