Installed c:\users\dskcpp\appdata\local\temp\easy_install-lbkyrj\cryptography-0. 7.1\.eggs\pycparser-2.10-py2.7.egg no previously-included directories found matching 'docs\_build' warning: no previously-included files matching '*' found under directory 'vector s' _Cryptography_cffi_70441dc9x8be47966.c src\cryptography\hazmat\bindings\__pycache__\_Cryptography_cffi_70441dc9x8be4796 6.c(194) : fatal error C1083: Cannot open include file: 'openssl/aes.h': No such file or directory error: [Error 5] : 'c:\\users\\dskcpp\\appdata\\local\\temp\\easy_install-lbkyrj \\cryptography-0.7.1\\.eggs\\cffi-0.8.6-py2.7-win-amd64.egg\\_cffi_backend.pyd'