title: import a python dictionary variable, failed: AttributeError: 'dict' object has no attribute
body: <p>import a python dictionary variable, failed: AttributeError: 'dict' object has no attribute
  For example:</p>
  <p><code>Variable.robot</code></p>
  <pre><code>Data = {'Url':'https:',
           'Username':'aaa',
           'Password':'bbb'}
  </code></pre>
  <p>and in <code>test.robot </code></p>
  <pre><code>log  ${Data.Url}
  </code></pre>
  <p>Error meaasge</p>
  <pre><code>Resolving variable '${Data}'failed: AttributeError: 'dict' object has no attribute 'Url'
  </code></pre>