Build dependencies for dhtreader python library

• python-dev
• bcm2835 library: http://www.airspayce.com/mikem/bcm2835/

Run following command to build the library:

python setup.py build

After that you should be able to find a dhtreader.so file inside build directory. Put that library file in the same directory with your Python script, then you are good to go.

Usage example:

import dhtreader

type = 22
pin = 24

dhtreader.init()
print dhtreader.read(type, pin)