Two RFID readers with Raspberry Pi
Assuming the python-dev and SPI-Py libraries are already correctly installed, configured, and tested on Raspberry Pi.
Otherwise, here is a brief help:
$ sudo apt-get install python-dev
$ git clone https://github.com/lthiery/SPI-Py.git
$ cd SPI-Py
$ sudo python setup.py install
Use:
$ git clone https://github.com/erivandoramos/TwoRC522RPi.git
$ cd TwoRC522RPi/
$ sudo python run_main_test.py
Press Ctrl + C to finish.