使用Google计算引擎时,“EntryPoint”对象没有属性“resolve”

2024-05-19 01:40:07 发布

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我有一个与Python中的加密包有关的问题。如果可能的话,你能帮忙解决这些问题吗?(试了很多次,但找不出确切的答案)

引发此错误的python代码:

print("Salt: %s" % salt)
server_key = pyelliptic.ECC(curve="prime256v1")  # ----->> Line2
print("Server_key: %s" % server_key)   # ----->> Line3
server_key_id = base64.urlsafe_b64encode(server_key.get_pubkey()[1:])

http_ece.keys[server_key_id] = server_key
http_ece.labels[server_key_id] = "P-256"
encrypted = http_ece.encrypt(data, salt=salt, keyid=server_key_id,
            dh=self.receiver_key, authSecret=self.auth_key)  # ----->> Line8

“盐”的价值在100%的案例中得到了体现。在

如果Line3成功执行,我会看到以下由于http而导致的入口点错误_ece.加密()呼叫(Line8):

^{pr2}$

(参考文件链接:https://github.com/martinthomson/encrypted-content-encoding/blob/master/python/http_ece/init.py#L128

在要求.txt(部分):

cryptography==1.5
pyelliptic==1.5.7
pyOpenSSL==16.1.0

运行命令:sudo pip freeze --all |grep setuptools,我得到: setuptools==27.1.2

如果需要更多细节,请告诉我。在

这个问题似乎基本上是由于VM上安装了一些旧的/不兼容的包(与pyelliculation、Cryptography、PyOpenSSL和/或setuptools相关)。供参考:https://github.com/pyca/cryptography/issues/3149

有人能提出一个好的解决方案来彻底解决这个问题吗?在

谢谢


Tags: keyhttpsselfidhttpserver错误setuptools
2条回答

从项目路径/opt/projects/myproject google/myproject运行以下命令,解决了属性入口点错误问题:

(假设project virtual env路径为:/opt/projects/myproject google/venv)

命令:(from path:/opt/projects/myproject google/myproject)

export PYTHONPATH=      # [Blank]
sudo pip install  upgrade virtualenv setuptools
sudo rm -rf ../venv
sudo virtualenv ../venv
source ../venv/bin/activate
sudo pip install  upgrade -r requirements.txt
deactivate

运行上述命令可升级虚拟环境和虚拟环境中的setuptools版本。位于路径:/opt/projects/myproject google/venv/lib/python2.7/site-packages。要测试setuptools是否已成功升级,请尝试以下命令:

  1. 命令sudo virtualenv version输出15.0.3
  2. 命令echo $PYTHONPATH输出:[空白]
  3. 命令python -c 'import pkg_resources; print(pkg_resources.__file__)'输出~/.local/lib/python2.7/site-packages/pkg_resources/__init__.pyc
  4. 命令python -c 'import sys; print(sys.path)'输出['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '~/.local/lib/python2.7/site-packages', '/usr/local/lib/python2.7/dist-packages', '/opt/projects/myproject-google/myproject', '/usr/local/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat']
  5. 命令ls /opt/projects/myproject-google/venv/lib/python2.7/site-packages输出easy_install.py pip pkg_resources setuptools-27.2.0.dist-info wheel-0.30.0a0.dist-info easy_install.pyc pip-8.1.2.dist-info setuptools wheel
  6. {cdstrong>命令 输出<cryptography.hazmat.backends.multibackend.MultiBackend object at 0x7ff83a838d50>
  7. 命令/opt/projects/myproject-google/venv/bin/python -c 'from cryptography.hazmat.backends import default_backend; print(default_backend())'输出 Traceback (most recent call last): File "<string>", line 1, in <module> ImportError: No module named cryptography.hazmat.backends
  8. 命令/opt/projects/myproject-google/venv/bin/python -c "import pkg_resources; print(pkg_resources.__file__)"输出/opt/projects/myproject-google/venv/local/lib/python2.7/site-packages/pkg_resources/__init__.pyc

参考链接:https://github.com/pyca/cryptography/issues/3149

这些步骤通过加密软件包和setuptools的更新版本完全解决了属性入口点问题。在

更新截至2016年9月15日,加密团队再次添加了支持旧软件包的解决方案。 (参考链接:https://github.com/pyca/cryptography/issues/3150

c66303382中引用的issue有这样的回溯(您从未给出回溯,所以我必须假设您的结果是相同的):

File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/backends/__init__.py", line 35, in default_backend
    _default_backend = MultiBackend(_available_backends())
File "/usr/local/lib/python2.7/dist-packages/cryptography/hazmat/backends/__init__.py", line 22, in _available_backends
    "cryptography.backends"

触发错误的The full line如下所示:

^{pr2}$

repository中搜索EntryPoint定义,然后在blaming ^{}中发现{}被添加到setuptools v11.3commit 92a553d3adeb431cdf92b136ac9ccc3f2ef98bf1(2015-01-05)。在

因此,如果使用旧版本,您将看到此错误。在

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