Paramiko hanging during authentication, when runned by dint of unittest runner
Question: Good day.

I have a strange problem with `paramiko` ssh client. `Connect paramiko` method
hangs when it's called outside `unittest2` classes/functions and code was run
by unittest runner.

There is a piece of code, where problem appears:

    
    
    import paramiko
    import unittest2
    
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect('172.18.67.10',
                username='root',
                password='secrete')
    _, stdout, _ = ssh.exec_command('date')
    
    
    class TestTest(unittest2.TestCase):
        def setUp(self):
            pass
    

If I move `ssh.connect` into `TestTest` class or `setUpModule` function,
connection will be successful. Also everything is OK when code is run by
original Python interpreter.

When I try to debug `paramiko`, I figure out this problem inside `while True`
loop in `paramiko/auth_handler.py:AuthHandler.wait_for_response method`.

Any suggestions?


Answer: According to [this SO answer](http://stackoverflow.com/a/450895/109807), it
seems to be a thread-related bug in paramiko and can be avoided by not calling
connect() during import.

