使用OpenSSL时SSL后端错误

在阅读了他们的INSTALLATION文件后,我能够通过设置环境变量并重新安装来解决我的问题

删除现有pycurl安装

pip uninstall pycurl

使用链接时ssl后端导出变量(上面是openssl)

export PYCURL_SSL_LIBRARY=openssl

然后,重新安装 pycurl

pip install pycurl --no-cache-dir

可能有其他的解决方案在那里,但这个工程完美的我在virtualenv和pip安装.

helloworld2013的答案是正确的,但关键是匹配pycurl期望的SSL库.错误将是这样的:

pycurl:libcurl link-time ssl后端(<library>)与编译时ssl后端(<library>或" none/other ")不同

要修复它,你必须使用pycurl所期望的库.在我的情况下,我的错误是" pycurl:libcurl link-time ssl backend(nss)与编译时ssl后端(openssl)不同 ",所以我的修复是:

pip uninstall pycurl
export PYCURL_SSL_LIBRARY=nss
pip install pycurl

使用pip 7.1,您可以将以下内容放入需求文件中:

pycurl==7.19.5.1 --global-option="--with-nss"

只需用相关的ssl后端库替换nss即可.

这对我有用:

pip uninstall pycurl
export PYCURL_SSL_LIBRARY=nss
easy_install pycurl

这些对我都没有用(注意区别就是easy_install vs pip):

pip uninstall pycurl
export PYCURL_SSL_LIBRARY=[nss|openssl|ssl|gnutls]
pip install pycurl
#xor
curl -O https://pypi.python.org/packages/source/p/pycurl/pycurl-7.19.3.1.tar.gz
#...
python setup.py --with-[nss|openssl|ssl|gnutls] install

我在CentOS 7上.我尝试了以上所有内容并且无法正常工作.事实证明我需要以root用户身份运行它们.因此,如果您遇到问题,请以root用户身份尝试上述任何解决方案.举个例子,这对我有用:

su -
pip uninstall pycurl
export PYCURL_SSL_LIBRARY=[nss|openssl|ssl|gnutls]
pip install pycurl

当然,所有关于以root用户身份运行的免责声明均适用.

注意:上面代码中的[nss | openssl | ssl | gnutls]表示选择一个,不包括方括号或管道.问原问题的人会选择openssl.在我的特殊情况下,我选择了nss.您的错误消息应该告诉您要做出哪个选择.

在Mac OS High Sierra更新后修复pycurl的方法:

重新安装curl库以使用OpenSSL而不是SecureTransport

brew install curl --with-openssl

使用正确的构建时环境和路径安装pycurl

export PYCURL_SSL_LIBRARY=openssl
pip uninstall pycurl 
pip install --no-cache-dir --global-option=build_ext --global-option="-L/usr/local/opt/openssl/lib" --global-option="-I/usr/local/opt/openssl/include" --user pycurl

您可以从这里下载tar.gz文件.然后将其提取到一个文件夹中.你会在那里找到一个setup.py文件.运行该站点提到的命令.例如:

python setup.py --with-[ssl|gnutls|nss] install

仅供参考:我试图在我的窗户安装pycurl,但我不能.但是在我的linux上做了.

我好几天都有这个问题.最后在这里的其他答案的帮助下(主要是亚历山大·泰普科夫),我得到了它为AWS Elastic Beanstalk工作.

手动安装(使用SSH连接):

sudo pip uninstall pycurl
curl -O https://pypi.python.org/packages/source/p/pycurl/pycurl-7.43.0.tar.gz
sudo pip install pycurl-7.43.0.tar.gz --global-option="--with-nss"

重要提示:请注意,您必须确保使用当前版本的Python和PIP,否则您可能正在为Python 2.x和使用v3.x编译它.

在Elastic Beanstalk中自动安装:

files:
  "/usr/local/share/pycurl-7.43.0.tar.gz" :
    mode: "000644"
    owner: root
    group: root
    source: https://pypi.python.org/packages/source/p/pycurl/pycurl-7.43.0.tar.gz

commands:
  01_download_pip3:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    command: 'curl -O https://bootstrap.pypa.io/get-pip.py'
  02_install_pip3:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    command: 'python3 get-pip.py'
  03_pycurl_uninstall:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    command: '/usr/bin/yes | sudo pip uninstall pycurl'
  04_pycurl_download:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    command: 'curl -O https://pypi.python.org/packages/source/p/pycurl/pycurl-7.43.0.tar.gz'
  05_pycurl_reinstall:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    command: 'sudo pip install pycurl-7.43.0.tar.gz --global-option="--with-nss"'

container_commands:
  09_pycurl_reinstall:
    # run this before PIP installs requirements as it needs to be compiled with OpenSSL
    # the upgrade option is because it will run after PIP installs the requirements.txt file.
    # and it needs to be done with the virtual-env activated
    command: 'source /opt/python/run/venv/bin/activate && pip3 install /usr/local/share/pycurl-7.43.0.tar.gz --global-option="--with-nss" --upgrade'

我遇到了这个问题,因为我试图在Elastic Beanstalk中使用Django 1.10配置Celery 4.如果那是你的情况,我写了一篇关于它的完整博客文章.

使用OSX 10.13,brew安装的openSSL和virtualenv,我成功地:

workon ..your-environment-here..
pip uninstall pycurl
export PYCURL_SSL_LIBRARY=openssl
export LDFLAGS=-L/usr/local/opt/openssl/lib;export CPPFLAGS=-I/usr/local/opt/openssl/include;pip install pycurl --compile --no-cache-dir