title: Type of error: get_dataset_names() takes 0 positional arguments but 1 was given
body: <p>I have clean dataset which is stored in csv file twt_clean_final.csv. It is data collected from twitter.  I need to build plot with data and I wanted to use sns.PairGrid(), but getting error. </p>
  
  <pre><code>twt_clean = pd.read_csv('twt_clean_final.csv')
  g = sns.get_dataset_names('twt_clean')
  g = sns.PairGrid(twt_clean)
  g.map(plt.scatter);
  </code></pre>
  
  <p>The error is following:</p>
  
  <pre><code>TypeError Traceback (most recent call last)
  &lt;ipython-input-134-43fa2c40408f&gt; in &lt;module&gt;
       1 twt_clean = pd.read_csv('twt_clean_final.csv')
  ----&gt; 2 g = sns.get_dataset_names('twt_clean')
        3 g = sns.PairGrid(twt_clean)
        4 g.map(plt.scatter);
  TypeError: get_dataset_names() takes 0 positional arguments but 1 was given
  </code></pre>
  
  <p><strong>How do I fix it?</strong></p>
  
  <p>I want to build a plot for current dataset.</p>