My stock OpenSSL library is ancient so I installed an alternative current OpenSSL release under "/usr/local/ssl". In order to compile "cryptography" in this machine I must do:
$ LDFLAGS="-L/usr/local/ssl/lib" \ CFLAGS="-I/usr/local/ssl/include" \ python -m pip install -U cryptography This is a Solaris machine, but I guess the same can be done in Linux, and other unix-like OSs. Please, add something about this in <https://cryptography.io/en/latest/installation/>. Thanks for "cryptography". It is an amazing product. PS: How can I know what OpenSSL version is using "cryptography", beside checking the loaded shared objects by hand? :): """ $ python3 Python 3.5.0 (dtrace-issue13405_3.5:a7da156226da, Sep 13 2015, 18:22:50) [GCC 5.2.0] on sunos5 Type "help", "copyright", "credits" or "license" for more information. >>> import cryptography >>> from cryptography.hazmat.bindings.openssl.binding import Binding >>> import os >>> os.getpid() 22075 ... [In another terminal] $ # pmap 22075 | grep -i ssl FDF00000 1536K r-x-- /usr/local/ssl/lib/libcrypto.so.1.0.0 FE08F000 92K rwx-- /usr/local/ssl/lib/libcrypto.so.1.0.0 FE0A6000 8K rwx-- /usr/local/ssl/lib/libcrypto.so.1.0.0 FE0B0000 376K r-x-- /usr/local/ssl/lib/libssl.so.1.0.0 FE11D000 28K rwx-- /usr/local/ssl/lib/libssl.so.1.0.0 FE130000 552K r-x-- /usr/local/lib/python3.5/site-packages/cryptography/hazmat/bindings/_openssl.so FE1C9000 60K rwx-- /usr/local/lib/python3.5/site-packages/cryptography/hazmat/bindings/_openssl.so """ -- Jesús Cea Avión _/_/ _/_/_/ _/_/_/ j...@jcea.es - http://www.jcea.es/ _/_/ _/_/ _/_/ _/_/ _/_/ Twitter: @jcea _/_/ _/_/ _/_/_/_/_/ jabber / xmpp:j...@jabber.org _/_/ _/_/ _/_/ _/_/ _/_/ "Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/ "My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/ "El amor es poner tu felicidad en la felicidad de otro" - Leibniz
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