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Runing commnad in an interactive remote shell with python and paramiko

/ Published in: Python
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It is necessary on occasion to execute a command in interactive shell. (I needed to to get access to some env vars... ) While there are many way to accomplish this I opted to run my cmd in interactive mode.
To do so I had to write this little wrapper snippet and figured it might be useful for someone else.

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  1. def interExecute(host,port,username,password,cmd):
  2.         """Execute the given commands in an interactive shell."""
  3.         transport = paramiko.Transport((host, port))            
  4.         transport.connect(username = username, password = password)
  5.         chan = paramiko.transport.open_session()
  6.         chan.setblocking(0)
  7.         chan.invoke_shell()
  8.  
  9.         out = ''
  10.  
  11.         chan.send(cmd+'\n')
  12.  
  13.         tCheck = 0
  14.  
  15.         # Wait for it.....
  16.         while not chan.recv_ready():
  17.             time.sleep(10)
  18.             tCheck+=1
  19.             if tCheck >= 6:
  20.                 print 'time out'#TODO: add exeption here 
  21.                 return False
  22.         out = chan.recv(1024)
  23.  
  24.         return out

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