add Python implementation

I tried my best to implement the following behavior:
```
from QCL import *            | qcl@QCLS:~$ python qcl.py             這Code   
if __name__ == '__main__':   | Tracebook (most recent call last):   有Bug...  
  qcl = QCL()                |   File "qcl.py", line 5, in <module>        ◤ 
  girl = qcl.getGirlFriend() |     print girl.name                〒    〒
  print girl.name            | AttributeError: 'NoneType' object  ▼ ▼ ▼ ▼ 
   ψ hahaohnoc3 修改:qcl     | has no attribute 'name'           \▲ ▲ ▲ ▲ / =
```