title: mechanize python click a button
body: <p>I have a form with <code>&lt;input type="button" name="submit" /&gt;</code> button and would like to be able to click it. </p>
  
  <p>I have tried <code>mech.form.click("submit")</code> but that gives the following error:</p>
  
  <p><code>ControlNotFoundError: no control matching kind 'clickable', id 'submit'</code></p>
  
  <p><code>mech.submit()</code> also doesn't work since its type is button and not submit.</p>
  
  <p>Any ideas? Thanks.</p>