ModuleNotFoundError: No module named ‘_ssl‘

一、安装openssl

wget http://www.openssl.org/source/openssl-1.0.2k.tar.gz
tar -xzf openssl-1.0.2k.tar.gz
cd openssl-1.0.2k

./config --prefix=/usr/local/openssl
./config -t
make
make install

二、安装python（3.8.10为例）

tar -zxvf Python-3.8.10.tgz
cd Python-3.8.10
vim Modules/Setup，解除注释206、210、211、212、213行,，解除注释后如下:
		'''
		_socket socketmodule.c
		
		# Socket module helper for SSL support; you must comment out the other
		# socket line above, and possibly edit the SSL variable:
		SSL=/usr/local/ssl
		_ssl _ssl.c \
			-DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \
			-L$(SSL)/lib -lssl -lcrypto
		'''
./configure --prefix=/usr/local/python38
make && make install