pi@raspberrypi:~ $ python
Python 2.7.16 (default, Oct 10 2019, 22:02:15) 
[GCC 8.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from mfrc522 import SimpleMFRC522
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named mfrc522
>>> RFIDModule = SimpleMFRC522()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'SimpleMFRC522' is not defined
>>> XZ
[3]+  Stopped                 python