How to install the third-party python (2.7) modules (e.g. Pycrypto) on ARM?

Question

I have compiled and installed Python-2.7.9 on my ARM-based device. When I try to install the Pycrypto, there comes the problems as follows.

1. First, I downloaded the source code, did python setup.py install, but it went wrong by telling the the Pycrypto needs C compiler on ARM. Apparently my ARM does not have the C compiler. So this method of installation didn't work.

2. Then, I tried the pip and easy_install way. It still failed by telling No matching distribution found for pycrypto while I successfully installed on x86 platform (my Ubuntu) using the same pip command.

So, what I want to ask is that how to install the third-party python module which includes the C code, like Pycrypto, on ARM platform.

Many thanks in advance!