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<meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">macOS: <div class="">pip3 install pycrypto</div><div class=""><br class=""></div><div class=""> fatal error: 'gmp.h' file not found?</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Error message:</div><div class=""><span style="caret-color: rgb(237, 13, 0); color: rgb(237, 13, 0); font-family: Menlo; font-size: 11px;" class="">///////////////////////////////////</span></div><div class=""><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">xcrun -sdk macosx clang -arch x86_64 -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -fwrapv -Wall -iwithsysroot/System/Library/Frameworks/System.framework/PrivateHeaders -iwithsysroot/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/Headers -std=c99 -O3 -fomit-frame-pointer -Isrc/ -I/usr/include/ -I/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.7/include/python3.7m -c src/_fastmath.c -o build/temp.macosx-10.14-x86_64-3.7/src/_fastmath.o</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> src/_fastmath.c:36:11: fatal error: 'gmp.h' file not found</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> # include <gmp.h></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> ^~~~~~~</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> 1 error generated.</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""> error: command 'xcrun' failed with exit status 1</span></div></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class="">///////////////////////////////////</span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;" class="">How to install pycrypto ?</span></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;" class=""><br class=""></span></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;" class=""><br class=""></span></span></div><div style="margin: 0px; font-stretch: normal; font-size: 11px; line-height: normal; font-family: Menlo; color: rgb(255, 76, 56);" class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;" class="">--------------------------------------------------</span></span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Best regards</span></font></div></body></html>