miniconda3: AttributeError: module ‘cryptography.hazmat.backends‘ has no attribute ‘openssl‘
miniconda3: AttributeError: module 'cryptography.hazmat.backends' has no attribute 'openssl'
- AttributeError: module 'cryptography.hazmat.backends' has no attribute 'openssl'
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-
- 解决办法
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AttributeError: module ‘cryptography.hazmat.backends’ has no attribute ‘openssl’
AUR 中的 miniconda3 更新到 23.5.2-1 之后出现的问题（更新前后我有按照说明注释掉 .bashrc 中的 conda）。当时更新之后去看 AUR 评论也没有发现啥，过了两天系统升级后该 bug 还在。第三天拿下 CPR 之后看下评论区发现一个可能的办法
gru: solved it by activating the base conda env and updating with pip pyopenssl and cryptography
然而我尝试 conda activate base 得到相同的错误
[mifen@hp ~]$ conda env list
Traceback (most recent call last):
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 16, in __call__
return func(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main.py", line 70, in main_subshell
p = generate_parser()
^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/conda_argparse.py", line 65, in generate_parser
p = ArgumentParser(
^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/conda_argparse.py", line 152, in __init__
self._subcommands = context.plugin_manager.get_hook_results("subcommands")
^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/base/context.py", line 502, in plugin_manager
from ..plugins.manager import get_plugin_manager
File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/__init__.py", line 3, in <module>
from .hookspec import hookimpl # noqa: F401
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/hookspec.py", line 9, in <module>
from .types import CondaSolver, CondaSubcommand, CondaVirtualPackage
File "/opt/miniconda3/lib/python3.11/site-packages/conda/plugins/types.py", line 7, in <module>
from ..core.solve import Solver
File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/solve.py", line 41, in <module>
from .index import _supplement_index_with_system, get_reduced_index
File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/index.py", line 24, in <module>
from .subdir_data import SubdirData, make_feature_record
File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/subdir_data.py", line 53, in <module>
from ..trust.signature_verification import signature_verification
File "/opt/miniconda3/lib/python3.11/site-packages/conda/trust/signature_verification.py", line 12, in <module>
from conda_content_trust.authentication import verify_delegation, verify_root
File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/authentication.py", line 34, in <module>
from .common import (
File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/common.py", line 66, in <module>
import cryptography.hazmat.backends.openssl.ed25519
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/__init__.py", line 6, in <module>
from cryptography.hazmat.backends.openssl.backend import backend
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 61, in <module>
from cryptography.hazmat.bindings.openssl import binding
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 232, in <module>
Binding.init_static_locks()
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 206, in init_static_locks
cls._ensure_ffi_initialized()
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 195, in _ensure_ffi_initialized
_legacy_provider_error(cls._legacy_provider_loaded)
File "/opt/miniconda3/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 104, in _legacy_provider_error
raise RuntimeError(
RuntimeError: OpenSSL 3.0's legacy provider failed to load. This is a fatal error by default, but cryptography supports running without legacy algorithms by setting the environment variable CRYPTOGRAPHY_OPENSSL_NO_LEGACY. If you did not expect this error, you have likely made a mistake with your OpenSSL configuration.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/miniconda3/condabin/conda", line 13, in
sys.exit(main())
^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main.py", line 129, in main
return conda_exception_handler(main, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 376, in conda_exception_handler
return_value = exception_handler(func, *args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 19, in __call__
return self.handle_exception(exc_val, exc_tb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 75, in handle_exception
return self.handle_unexpected_exception(exc_val, exc_tb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 88, in handle_unexpected_exception
self.print_unexpected_error_report(error_report)
File "/opt/miniconda3/lib/python3.11/site-packages/conda/exception_handler.py", line 159, in print_unexpected_error_report
from .cli.main_info import get_env_vars_str, get_main_info_str
File "/opt/miniconda3/lib/python3.11/site-packages/conda/cli/main_info.py", line 15, in
from ..core.index import _supplement_index_with_system
File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/index.py", line 24, in
from .subdir_data import SubdirData, make_feature_record
File "/opt/miniconda3/lib/python3.11/site-packages/conda/core/subdir_data.py", line 53, in
from ..trust.signature_verification import signature_verification
File "/opt/miniconda3/lib/python3.11/site-packages/conda/trust/signature_verification.py", line 12, in
from conda_content_trust.authentication import verify_delegation, verify_root
File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/authentication.py", line 34, in
from .common import (
File "/opt/miniconda3/lib/python3.11/site-packages/conda_content_trust/common.py", line 334, in
cryptography.hazmat.backends.openssl.ed25519._Ed25519PrivateKey, # DANGER
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: module ' cryptography.hazmat.backends' has no attribute 'openssl'
解决办法
进入 conda 安装目录下的 bin 目录，使用其下的 pip 删除旧版的包，然后重装就会装新版的了
$ pwd
/opt/miniconda3/bin
$ ./pip list | grep pyOpenSSL
pyOpenSSL 23.0.0
$ ./pip list | grep cryptography
cryptography 39.0.1
$ sudo ./pip uninstall cryptography pyOpenSSL
$ sudo ./pip install cryptography pyOpenSSL
Successfully installed cryptography-41.0.3 pyOpenSSL-23.2.0
$ conda env list
# conda environments:
#
310 /home/mifen/.conda/envs/310
vpy /home/mifen/.conda/envs/vpy
base /opt/miniconda3