我有一个在旧的 CentOS 7 机器上运行的 Django 应用程序,并且为了在那里拥有自己的 python3 环境,我使用了 venv 和 pip。今天我重建了我的环境,突然间,我有了一个与 ssl 相关的回溯。
[root@miketug1 teleworker]# vpython manage.py showmigrations
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/usr/lib/tug/env/lib64/python3.6/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
utility.execute()
File "/usr/lib/tug/env/lib64/python3.6/site-packages/django/core/management/__init__.py", line 338, in execute
django.setup()
File "/usr/lib/tug/env/lib64/python3.6/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/lib/tug/env/lib64/python3.6/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models()
File "/usr/lib/tug/env/lib64/python3.6/site-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/usr/lib64/python3.6/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/etc/e-smith/web/django/teleworker/dashboard/models.py", line 9, in <module>
import teleworker.lib.common as commonlib
File "/etc/e-smith/web/django/teleworker/lib/common.py", line 35, in <module>
import requests
File "/usr/lib/tug/env/lib64/python3.6/site-packages/requests/__init__.py", line 95, in <module>
from urllib3.contrib import pyopenssl
File "/usr/lib/tug/env/lib64/python3.6/site-packages/urllib3/contrib/pyopenssl.py", line 46, in <module>
import OpenSSL.SSL
File "/usr/lib/tug/env/lib64/python3.6/site-packages/OpenSSL/__init__.py", line 8, in <module>
from OpenSSL import crypto, SSL
File "/usr/lib/tug/env/lib64/python3.6/site-packages/OpenSSL/SSL.py", line 664, in <module>
_lib.Cryptography_HAS_TLSEXT_HOSTNAME, "SNI not available"
AttributeError: module 'lib' has no attribute 'Cryptography_HAS_TLSEXT_HOSTNAME'
我的模块版本在 requirements.txt 文件中设置,该文件没有更改。我正在使用 Python 3.6 运行 pyOpenSSL 19.0.0。我升级到 pyOpenSSL 20.0.0 并且问题消失了,但是我很困惑,除非 PyPI 上的 19.0.0 版本被更改,否则这会如何发生,因为我已经使用这个模块的固定版本一段时间了。谁能解释这里发生了什么?我想避免将来发生类似的事情。谢谢。
最佳答案
这个问题的根本原因是 20 小时前发布的最新的 cryptography-3.3 包;不幸的是,pyopenssl-19 有一个奇怪的要求(密码学> = 2.3),因此 pip 安装自动将密码学升级到 3.3。
关于python - 我固定的 pyOpenSSL 版本 19.0.0 突然坏了,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/65221052/