title: Python requests NTLM without password
body: <p>I am trying to access a website that uses NTLM authentication. I have been successfully able to retrieve the content using the <a href="http://www.python-requests.org/en/latest/" rel="noreferrer">requests</a> library in combination with <a href="https://github.com/requests/requests-ntlm" rel="noreferrer">requests-ntlm</a>. However to use that I have to provide both username and password in the code or as an input from the user.</p>
  
  <p>If I access the same site in any of my browsers I am not asked for anything, it just works. How can I avoid the need to enter the password using python ? </p>