Mac OS X系统安装openssl和Cryptography
~brew install openssl
==> Downloading https://homebrew.bintray.com/bottles/openssl-1.0.2g.el_capitan.bottle.tar.gz Already downloaded: /Library/Caches/Homebrew/openssl-1.0.2g.el_capitan.bottle.tar.gz ==> Pouring openssl-1.0.2g.el_capitan.bottle.tar.gz ==> Caveats A CA file has been bootstrapped using certificates from the system keychain. To add additional certificates, place .pem files in /usr/local/etc/openssl/certs and run /usr/local/opt/openssl/bin/c_rehash This formula is keg-only, which means it was not symlinked into /usr/local. Apple has deprecated use of OpenSSL in favor of its own TLS and crypto libraries Generally there are no consequences of this for you. If you build your own software and it requires this formula, you'll need to add to your build variables: LDFLAGS: -L/usr/local/opt/openssl/lib CPPFLAGS: -I/usr/local/opt/openssl/include ==> Summary 🍺 /usr/local/Cellar/openssl/1.0.2g: 1,678 files, 12.0M
~/usr/local/opt/openssl/bin/c_rehash
~env ARCHFLAGS="-arch x86_64" LDFLAGS="-L/usr/local/opt/openssl/lib" CFLAGS="-I/usr/local/opt/openssl/include" pip install cryptography
~sudo easy_install Cryptography