Pip failure after pip install pyOpenSSL

problem description

pip failure (pip install pyOpenSSL is normal after pip install pyOpenSSL==16.0.0)
pip-V or pip list will report an error
pip uninstall pyOpenSSL will also report an error

the content of the error report is as follows: 

Traceback (most recent call last):
  File "/usr/bin/pip", line 7, in <module>
    from pip._internal import main
  File "/usr/lib/python2.7/site-packages/pip/_internal/__init__.py", line 42, in <module>
    from pip._internal import cmdoptions
  File "/usr/lib/python2.7/site-packages/pip/_internal/cmdoptions.py", line 16, in <module>
    from pip._internal.index import (
  File "/usr/lib/python2.7/site-packages/pip/_internal/index.py", line 14, in <module>
    from pip._vendor import html5lib, requests, six
  File "/usr/lib/python2.7/site-packages/pip/_vendor/requests/__init__.py", line 97, in <module>
    from pip._vendor.urllib3.contrib import pyopenssl
  File "/usr/lib/python2.7/site-packages/pip/_vendor/urllib3/contrib/pyopenssl.py", line 46, in <module>
    import OpenSSL.SSL
  File "/usr/lib/python2.7/site-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "/usr/lib/python2.7/site-packages/OpenSSL/SSL.py", line 124, in <module>
    SSL_ST_INIT = _lib.SSL_ST_INIT
AttributeError: "module" object has no attribute "SSL_ST_INIT"

platform version in which the problem occurs

Linux web 3.10.0-693.2.2.el7.x86_64-sharp1 SMP Tue Sep 12 22:26:13 UTC 2017 x86 "64 GNU/Linux
pip 18.0 from / usr/lib/python2.7/site-packages/pip (python2.7)

Pip python
Apr.05,2021
The

16.2.0 + version seems to fix this issue . First clear the installed package and then try pip install pyOpenSSL==16.2.0

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e43c33-26f9a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e43c33-26f9a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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