title: How webapp2 get checkbox values, and the name is the same?
body: <p>How webapp2 get checkbox values from jinja2 templates, and the name is the same ? Is the data structure is Dict ? How can get it and pass it ?</p>
  
  <p>html templates:</p>
  
  <p>...</p>
  
  <pre><code>{% for tablename in tablenames %}
  &lt;input type = "checkbox" name = "tn"&gt;{{tablename}}
  {% endfor %}
  </code></pre>
  
  <p>...</p>
  
  <p>main.py:</p>
  
  <pre><code>tn = self.request.get('tn')
  </code></pre>
  
  <p>Thank you guys : )</p>
  
  <p>How get the checkbox value and pass it into tn ?</p>