Trying to install PyCrypto on Ubuntu via Buildout, src/config.h: No such file or directory

Question

I'm trying to install PyCrypto on an Ubuntu instance via Buildout (via easy_install) and I'm getting the following error:

Getting distribution for 'pycrypto>=1.9'.
Running easy_install:
/usr/bin/python "-S" "-c" "import sys,os;p = sys.path[:];import site;sys.path[:] = p;    [sys.modules.pop(k) for k, v in sys.modules.items() if hasattr(v, '__path__') and len(v.__path__)==1 and not os.path.exists(os.path.join(v.__path__[0],'__init__.py'))];from setuptools.command.easy_install import main;main()" "-mUNxd" "/opt/rocktech/buildout/cache/eggs/tmppKIfK7" "-Z" "/opt/rocktech/buildout/cache/download/dist/pycrypto-2.4.tar.gz"
path=/opt/rocktech/buildout/cache/eggs/setuptools-0.6c12dev_r88846-py2.6.egg

Processing pycrypto-2.4.tar.gz
Running pycrypto-2.4/setup.py -q bdist_egg --dist-dir /tmp/easy_install-dD_8Pu/pycrypto-    2.4/egg-dist-tmp-_d3xDl
error: Setup script exited with error: src/config.h: No such file or directory
An error occurred when trying to install pycrypto 2.4. Look above this message for any     errors that were output by easy_install.
While:
  Installing django.
  Getting distribution for 'pycrypto>=1.9'.
Error: Couldn't install: pycrypto 2.4

Any idea on what's causing this?

Notably, I had the same issue locally on Snow Leopard and I was able to fix it by downloading the code directly and running python manage.py build and python manage.py install by hand. I want to avoid that here because I'm deploying to a dozen servers.

Answer 1

Even with the newest pycrypto I keep having this problem, so I just run ./configure and the src/config.h is created, so now just run pip or, easy_install or, setup.py...

Answer 2

You can also download pycrypto-2.4.tar.gz unpack it and run (as root):

./configure
python setup.py install

After that pycrypto will be installed into /usr/lib/python2.7/site-packages/Crypto. I tested it on 'easy_install pysnmp'.