title: Python package bar-chart-race 0.1.0: can't change separator thousands to dot
body: <p>While using pandas with the python package: <code>bar-chart-race 0.1.0</code>, I can't seem to change the thousands seperator to German/Dutch style,</p>
  <p>namely: 1.000,23 instead of 1,000.23</p>
  <p><em>I tried changing the locale</em></p>
  <pre><code>import locale
  
  locale.setlocale(locale.LC_ALL, 'deu_DEU')
  
  'German_Germany.1252'
  
  &quot;{0:n}&quot;.format(x)
  </code></pre>
  <p>It gives this feedback:</p>
  <blockquote>
  <p>TypeError: unsupported format string passed to DataFrame.<strong>format</strong></p>
  </blockquote>
  <p><em>I tried changing the style</em></p>
  <pre><code>df.head().style.format(&quot;{0:n}&quot;)
  </code></pre>
  <p>This works partly, because I see the df values correctly displayed in the first rows of output, but it won't implement the changes in the bart chart race graphical representation of the data...</p>
  <p>Any help would be greatly appreciated, please be warned, this is my very first python project :) I'm an absolute newbie.</p>