title: Fill DataFrame Column depends on condition
body: <p>I have the following DataFrame:</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th>Fruit</th>
  <th>Color</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>Apple</td>
  <td></td>
  </tr>
  <tr>
  <td>Orange</td>
  <td></td>
  </tr>
  <tr>
  <td>Pear</td>
  <td></td>
  </tr>
  <tr>
  <td>Peach</td>
  <td></td>
  </tr>
  </tbody>
  </table>
  </div>
  <p>How can I fill the second column that depends on the 'Fruit' column value?</p>
  <p>For instance, if the fruit is 'Apple', then the second column should be 'Red', if the fruit is Orange, then the color should be 'Orange' and so on.</p>
  <p>I have tried to use If statment, but it doesnt work.</p>
  <pre><code>import pandas as pd
  
  d = {'Fruit': ['Apple', 'Orange', 'Pear', 'Peach'], 'Color': ['','','','']}
  df = pd.DataFrame(data=d)
  df
  </code></pre>