Python3.8.4 解决 ImportError: urllib3 v2 only supports OpenSSL 1.1.1+, currently the 'ssl' m

系统版本：

CentOS Linux release 7.6.1810 (Core)

编译安装Python3.8.4

[root@hankyoon ~]# tar -xvf Python-3.8.4.tgz

[root@hankyoon ~]# cd Python-3.8.4/

[root@hankyoon ~]# ./configure --prefix=/usr/local/python3.8

[root@hankyoon ~]# make && make install

[root@hankyoon ~]# echo "PATH=/usr/local/mysql/bin:/usr/local/python3.8/bin/:$PATH" >> /etc/profile

[root@hankyoon ~]# source /etc/profile

安装requests、pymysql

[root@hankyoon ~]# pip3.8 install requests -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

[root@hankyoon ~]# pip3.8 install pymysql -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

执行MySQL备份脚本：

[root@hankyoon ~]# /usr/local/python3.8/bin/python3.8 /data/db_tools/scripts/db_mysql_bak.py

报错：

Traceback (most recent call last):
  File "/data/db_tools/scripts/db_mysql_bak.py", line 6, in <module>
    import requests
  File "/usr/local/python3.8/lib/python3.8/site-packages/requests/__init__.py", line 43, in <module>
    import urllib3
  File "/usr/local/python3.8/lib/python3.8/site-packages/urllib3/__init__.py", line 42, in <module>
    raise ImportError(
ImportError: urllib3 v2 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with 'OpenSSL 1.0.2k-fips  26 Jan 2017'. See: https://github.com/urllib3/urllib3/issues/2168

安装openssl-1.0.2r

[root@hankyoon ~]# wget http://www.openssl.org/source/openssl-1.0.2r.tar.gz

[root@hankyoon ~]# tar zxvf openssl-1.0.2r.tar.gz

[root@hankyoon ~]# ./config --prefix=/opt/openssl1.0.2r --openssldir=/opt/openssl1.0.2r/openssl no-zlib

[root@hankyoon ~]# make && make install

[root@hankyoon ~]# echo "/opt/openssl1.0.2r/lib" >> /etc/ld.so.conf

[root@hankyoon ~]# ldconfig -v

[root@hankyoon ~]# cd Python-3.8.4

[root@hankyoon ~]# vim Modules/Setup
SSL=/opt/openssl1.0.2r
_ssl _ssl.c \
    -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \
    -L$(SSL)/lib -lssl -lcrypto

重新编译Python-3.8.4
[root@hankyoon ~]# cd Python-3.8.4

[root@hankyoon ~]# make && make Install

重新执行MySQL备份脚本，若还报错，将urllib3版本降低

[root@hankyoon ~]# python3.8 -m pip install urllib3==1.26.6