已安装openssl模块

rpm -qa|grep openssl

openssl-devel-1.0.1e-42.el6_7.4.x86_64
openssl-1.0.1e-42.el6_7.4.x86_64

并通过源码包手动安装了openssl1.1.1版本
OpenSSL 1.1.1-pre3 (beta) 20 Mar 2018 (Library: OpenSSL 1.1.1a 20 Nov 2018)

安装 python的时候修改了源码包里面的
Modules/Setup.dist
Modules/Setup
这2个文件，解除了下面代码的注释，并将SSL路径制定为新版本openssl的安装路径
_socket socketmodule.c
SSL=/usr/local/openssl
_ssl _ssl.c -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl -L$(SSL)/lib -lssl -lcrypto

python安装命令
./configure --prefix=/usr/local/python3 --with-openssl=/usr/local/openssl --with-ssl-default-suites=python
make
make install
在make的时候，有这么一段信息
*** WARNING: renaming "_dbm" since importing it failed: build/lib.linux-x86_64-3.7/_dbm.cpython-37m-x86_64-linux-gnu.so: undefined symbol: dbm_firstkey

Python build finished successfully!
The necessary bits to build these optional modules were not found:
_gdbm
To find the necessary bits, look in setup.py in detect_modules() for the module's name.

The following modules found by detect_modules() in setup.py, have been
built by the Makefile instead, as configured by the Setup files:
_abc _socket _ssl
atexit pwd time

Following modules built successfully but were removed because they could not be imported:
_dbm

python3安装上了，感觉安装是没有问题的，但是在安装模块的时候总提示没有_ssl这个模块

import ssl
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.7/ssl.py", line 98, in <module>
import _ssl # if we can't import it, let the error propagate
ModuleNotFoundError: No module named '_ssl'

谁知道这个该怎么处理