title: I want to filter column with a character
body: <p>I want to filter the column NAME with just one letter &quot;o&quot;.<br />
  DataFrame:</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th style="text-align: left;">NAME</th>
  <th style="text-align: left;">HOBBY</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td style="text-align: left;">John</td>
  <td style="text-align: left;">football</td>
  </tr>
  <tr>
  <td style="text-align: left;">Kelly</td>
  <td style="text-align: left;">chess</td>
  </tr>
  </tbody>
  </table>
  </div>
  <p><code>df[&quot;NAME&quot;].filter(like =&quot;o&quot;)</code></p>
  <p>I am looking for an output:</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th style="text-align: left;">NAME</th>
  <th style="text-align: left;">HOBBY</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td style="text-align: left;">John</td>
  <td style="text-align: left;">football</td>
  </tr>
  </tbody>
  </table>
  </div>