Python 无法安装pyOpenSSL

我在Macbook Pro上双重启动了Windows 10分区： Mac:El Capitan（64位） Windows:Windows 10 64位，使用fat文件系统格式化

在Windows上，我安装了cygwin和Python 2.7。通过cygwin，我安装了pip和gcc

我还尝试使用安装cffi，但当我运行pip安装

cffi-1.8.2-cp27-cp27m-win_amd64.whl

，我得到错误：

cffi…此平台不支持whl

。然后我尝试了很多我不记得的东西，我想我甚至试过下载一个tar文件，然后现在，当我运行pip install cffi时，我被告知它已经安装好了

然后我运行了

pip安装pyOpenSSL

，但是，我遇到了以下错误：

 gcc -fno-strict-aliasing -ggdb -O2 -pipe -Wimplicit-function-declaration -fdebug-prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/build=/usr/src/debug/python-2.7.10-1 -fdebug-prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/src/Python-2.7.10=/usr/src/debug/python-2.7.10-1 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/include/python2.7 -c build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c -o build/temp.cygwin-2.6.0-x86_64-2.7/build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.o
    build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c:433:30: fatal error: openssl/opensslv.h: No such file or directory
    compilation terminated.
    error: command 'gcc' failed with exit status 1

Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-9Emw8c/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-wy64bj-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-9Emw8c/cryptography/

我在执行

pip安装加密时也遇到了这个错误

我在某个地方读到应该尝试的内容：
pip安装--global option build\u ext--global option--compiler=mingw64 pyopenssl
，我得到了：

Skipping bdist_wheel for pyopenssl, due to binaries being disabled for it.
Skipping bdist_wheel for cryptography, due to binaries being disabled for it.
Installing collected packages: cryptography, pyopenssl
  Running setup.py install for cryptography ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-fIb1xc/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" build_ext --compiler=mingw64 install --record /tmp/pip-7flSlN-record/install-record.txt --single-version-externally-managed --compile:
    running build_ext
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_padding.c'
    creating build
    creating build/temp.cygwin-2.6.0-x86_64-2.7
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_constant_time.c'
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c'
    error: don't know how to compile C/C++ code on platform 'posix' with 'mingw64' compiler

    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-fIb1xc/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" build_ext --compiler=mingw64 install --record /tmp/pip-7flSlN-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-fIb1xc/cryptography/

有人能告诉我怎么了吗

更新：通过cygwin安装
mingw64x86\u 64-openssl:openssl-encryption library for Win64工具链
，并运行
pip-install-pyopenssl
后，我得到：

 running build_ext
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_padding.c'
    creating build/temp.cygwin-2.6.0-x86_64-2.7
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_constant_time.c'
    generating cffi module 'build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c'
    building '_openssl' extension
    creating build/temp.cygwin-2.6.0-x86_64-2.7/build
    creating build/temp.cygwin-2.6.0-x86_64-2.7/build/temp.cygwin-2.6.0-x86_64-2.7
    /usr/bin/clang -fno-strict-aliasing -ggdb -O2 -pipe -Wimplicit-function-declaration -fdebug-prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/build=/usr/src/debug/python-2.7.10-1 -fdebug-prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/src/Python-2.7.10=/usr/src/debug/python-2.7.10-1 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/usr/include/python2.7 -c build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c -o build/temp.cygwin-2.6.0-x86_64-2.7/build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.o
    build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c:433:10: fatal error: 'openssl/opensslv.h' file not found
    #include <openssl/opensslv.h>
             ^
    1 error generated.
    error: command '/usr/bin/clang' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-ZsWN3h/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-D2XH0P-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-ZsWN3h/cryptography/

运行build\u ext
生成cffi模块“build/temp.cygwin-2.6.0-x86_64-2.7/_padding.c”
创建构建/临时cygwin-2.6.0-x86_64-2.7
生成cffi模块“build/temp.cygwin-2.6.0-x86\u 64-2.7/\u constant\u time.c”
生成cffi模块“build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c”
正在生成“\u openssl”扩展
创建build/temp.cygwin-2.6.0-x86_64-2.7/build
创建build/temp.cygwin-2.6.0-x86_64-2.7/build/temp.cygwin-2.6.0-x86_64-2.7
/usr/bin/clang-fno严格别名-ggdb-O2-pipe-Wimplicit函数声明-fdebug prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/build=/usr/src/debug/python-2.7.10-1-fdebug prefix-map=/usr/src/ports/python/python-2.7.10-1.x86_64/src/debug/python-2.7.10-1-1-DNDEBUG-RICO3-FWT-墙原型-I/usr/include/python2.7-c build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c-o build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.o
build/temp.cygwin-2.6.0-x86_64-2.7/_openssl.c:433:10:致命错误：未找到“openssl/opensslv.h”文件
#包括
^
生成1个错误。
错误：命令“/usr/bin/clang”失败，退出状态为1
----------------------------------------
命令“/usr/bin/python-u-c”导入setuptools，标记化__文件_='/tmp/pip-build-ZsWN3h/cryptography/setup.py'；exec（compile（getattr（tokenize，'open'，open）（uuu文件uu）.read（）.replace（'\r\n'，'\n'），uu文件uuu，'exec'））“install--record/tmp/pip-D2XH0P-record/install-record.txt--外部管理的单一版本--compile”失败，错误代码为/tmp/pip-build-ZsWN3h/cryptography中的1/
我遇到了类似的问题，安装了libssl头文件，以便编译python模块：

sudo apt-get install libssl-dev

您是否安装了OpenSSL（因为pyOpenSSL只是围绕它的Python包装器）？是的，我安装了。它位于\cydrive\c\OpenSSL-win64中。我是从源代码处安装的：这条路径看起来像是您已经为Win安装了OpenSSL，最有可能的是您必须安装（或构建，如果不可用）Cygwin版本。作为快速测试运行
/cydrive/c/OpenSSL-win64/bin/OpenSSL version-a
并查看其输出内容。它输出：
OpenSSL 1.1.0 2016年8月25日，构建于：可复制构建，未指定日期，平台：，编译器：cl“VC-WIN64A，OPENSSLDIR:“c:\Program Files\Common Files\SSL”，ENGINESDIR:“c:\Program File\OpenSSL\lib\engines-1\u 1”
Hmm，好吧，一些需要OpenSSL的工具只是运行它（并从它的输出找出它的路径）或者从${path}获取它，我怀疑/cydrive/c/OpenSSL-win64/bin是否在其中。您能否创建一个符号链接：
/usr/bin/openssl
，指向可执行文件，然后再次尝试安装模块？或者有没有办法将OpenSSL安装目录传递给pip？