title: Azure ADAL for Python - model has no attribute 'acquire_token_with_username_password'
body: <p>Giving <a href="https://github.com/AzureAD/azure-activedirectory-library-for-python" rel="nofollow">Azure ADAL for Python</a> a try. Getting this error when import adal.</p>
  
  <pre><code>import adal
  </code></pre>
  
  <p>Gives error</p>
  
  <pre><code>token_response = adal.acquire_token_with_username_password( 
      AttributeError: 'module' object has no attribute 'acquire_token_with_username_password'
  </code></pre>
  
  <p>I have downloaded most recent code from Github.</p>
  
  <p>The README has sample code that uses <code>acquire_token_with_username_password</code> so it should be present.</p>
  
  <p>What am I missing?</p>
  
  <pre><code>import adal
  token_response = adal.acquire_token_with_username_password(
      'https://login.windows.net/ACTIVE_DIRECTORY_TENANT.onmicrosoft.com',
      'username@ACTIVE_DIRECTORY_TENANT.onmicrosoft.com',
      'password'
  )
  </code></pre>