title: module 'pysftp' has no attribute 'Connection' in python 3.6
body: <p>I would like to send a file through sftp with python3.6.5.
  I'm trying with pysftp package which seems to be a reference.</p>
  
  <p><a href="https://pypi.org/project/pysftp/" rel="nofollow noreferrer">The doc</a> says that latest version 0.2.9 (released in 2016) was checked for Python 3.4, not above (quite logic for that time).
  I read some comments saying it works for 3.6.
  I downloaded the package and try to use it, but got this mistake :
  AttributeError: module 'pysftp' has no attribute 'Connection'</p>
  
  <p>Can't understand why ..
  Can someone help me out or have an other sftp package ? Thanks a lot !</p>
  
  <p>Here is my code :</p>
  
  <pre><code>import pysftp
  with pysftp.Connection(host=hote, username=nom, password=mdp) as sftp:
      print("Connection succesfully established ... ")
  </code></pre>