Installing PyCrypto on Ubuntu - fatal error on build

python pycrypto
OJFord picture OJFord · Jul 22, 2012 · Viewed 76.8k times · Source

Having looked at other similar threads, I still can't get pycrypto running.

I'm trying to get it working on my Ubuntu laptop - but I couldn't manage it on my Windows PC either.

I downloaded pycrypto-2.6, extracted it, and ran

    python setup.py build

but then this happened

warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath.
building 'Crypto.Hash._MD2' extension
gcc -pthread -fno-strict-aliasing -fwrapv -Wall -Wstrict-prototypes -fPIC -std=c99 -O3 - fomit-frame-pointer -Isrc/ -I/usr/include/python2.7 -c src/MD2.c -o build/temp.linux-i686-?2.7/src/MD2.o
src/MD2.c:31:20: fatal error: Python.h: No such file or directory
compilation terminated.
error: command 'gcc' failed with exit status 1

Would appreciate any help.

Answer

Ned Batchelder picture Ned Batchelder · Jul 22, 2012

You need to install the Python development files. I believe this will do it:

sudo apt-get install python-dev

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