I\'m trying to install Scrapy, but got this error during installing: build\\temp.win-amd64-2.7\\Release_openssl.c(429) : fatal error C1083: Cannot open include file: \'opens
Setting these two environment values fixed it for me, after which pip install cryptography worked:
pip install cryptography
set LIB=C:\OpenSSL-win64\lib;%LIB% set INCLUDE=C:\OpenSSL-win64\include;%INCLUDE%
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