title: pandas: how to read html and casting all fields to string
body: <p>If I import <a href="https://gist.github.com/aborruso/599153968878f452bd3c68f3de0f29c4/raw/1156d224a4290393409ceef285c238c09b6bd08e/input.html" rel="nofollow noreferrer">this HTML file</a></p>
  
  <pre><code>pd_df = pd.read_html('./output.html')
  pd_df[0]
  </code></pre>
  
  <p>the last field becomes a float, but it's a string (in example from <code>05269</code> to <code>5269.0</code>). I know I can apply <code>pd_df = pd.read_html('./output.html',converters={'CAP': str})</code>, but my question is: is there a way to apply globally str casting to all fields, using read_html?</p>
  
  <p>Because this is an example file, this is a simple example, but often I have a lot of fields and a global option would be great.</p>