title: Convert string to float pandas
body: <p>Simple question: I have a dataset, imported from a csv file, containing a string column with numeric values. After the comma are decimal places. </p>
  
  <p>I want to convert to float. Basically,it's just this:</p>
  
  <pre><code>x = ['27,10083']
  df = pd.DataFrame(x)
  df.astype(float)
  </code></pre>
  
  <p>Why does this not work and how to fix this simple issue?</p>
  
  <p>Thanks in advance. </p>