title: Python adding List as a row to Pandas Dataframe
body: <p>I have an empty existing dataframe with columns</p>
  
  <pre><code>In[337]: df_short_interests.columns
  Out[337]: 
  Index(['Settlement Date', 'Short Interest', 'Avg Daily Share Volume',
         'Days To Cover'],
        dtype='object')
  </code></pre>
  
  <p>I have a list below which I would like to add as a row to the dataframe.</p>
  
  <pre><code>row_data = []
  row_data.append('2/15/2019')
  row_data.append('39,903,215')
  row_data.append('26,937,971')
  row_data.append('1.481300')
  </code></pre>
  
  <p>I tried to add the list with the below code and I got warning and the list get added as a column instead.</p>
  
  <pre><code>In[334]:df_short_interests.append(row_data, ignore_index=True)
  C:\Users\user\Anaconda3\lib\site-packages\pandas\core\indexes\api.py:107: RuntimeWarning: '&lt;' not supported between instances of 'str' and 'int', sort order is undefined for incomparable objects
    result = result.union(other)
  Out[334]: 
     Settlement Date  Short Interest     ...      Days To Cover           0
  0              NaN             NaN     ...                NaN   2/15/2019
  1              NaN             NaN     ...                NaN  39,903,215
  2              NaN             NaN     ...                NaN  26,937,971
  3              NaN             NaN     ...                NaN    1.481300
  </code></pre>
  
  <p>How can I add the list a row instead of a column?</p>
  
  <p>Thank you.</p>