Does not work on MAC or CentOS6.5 about exscript HOT 2 CLOSED

from Exscript.util.interact import read_login
from Exscript.protocols import SSH2
account = read_login()
conn = SSH2(debug=1)
conn.connect('localhost')
conn.login(account)
conn.execute('ls -l')
print "Response was:", repr(conn.response)
conn.send('exit\r')
conn.close()

yum update
yum install git python-crypto python-setuptools python-devel
git clone https://github.com/knipknap/exscript.git
cd exscript/
sudo make install PREFIX=/usr
cd demos/simple/
python simple.py

python simple.py 
Please enter your user name [vagrant]: 
Please enter your password: 
Response was: 'ls -l\r\ntotal 4\r\ndrwxr-xr-x 9 root root 4096 Jan 16 16:48 exscript\r\n[vagrant@localhost ~]$ '