title: rpy2 conversion to pandas DataFrame returns numpy recarray instead of pandas
body: <p>I am trying to convert an R data frame into a python using <code>rpy2</code></p>
  
  <pre><code>with localconverter(ro.default_converter + pandas2ri.converter):
                  smogned = ro.conversion.rpy2py(smogned)
  print('after pandas2ri')            
  print(type(smogned))
  print(smogned.shape)
  print(smogned.dtype)
  </code></pre>
  
  <p>which gives me the following</p>
  
  <pre><code>after pandas2ri
  &lt;class 'numpy.recarray'&gt;
  (7412,)
  (numpy.record, [('WS', '&lt;f8'), ('WS_1', '&lt;f8'), ('WS_2', '&lt;f8'), ('WS_3', '&lt;f8'), ('WS_4', '&lt;f8'), ('WS_5', '&lt;f8'), ('RH', '&lt;f8'), ('RH_1', '&lt;f8'), ('RH_2', '&lt;f8'), ('RH_3', '&lt;f8'), ('RH_4', '&lt;f8'), ('RH_5', '&lt;f8'), ('TA', '&lt;f8'), ('TA_1', '&lt;f8'), ('TA_2', '&lt;f8'), ('TA_3', '&lt;f8'), ('TA_4', '&lt;f8'), ('TA_5', '&lt;f8'), ('gridMET_ETr', '&lt;f8'), ('Site_Id_1', '&lt;f8'), ('Site_Id_2', '&lt;f8'), ('Site_Id_3', '&lt;f8'), ('Site_Id_4', '&lt;f8'), ('Site_Id_5', '&lt;f8'), ('Site_Id_6', '&lt;f8'), ('Vegetation_1', '&lt;f8'), ('Vegetation_2', '&lt;f8'), ('Vegetation_3', '&lt;f8'), ('Month_1', '&lt;f8'), ('Month_2', '&lt;f8'), ('Month_3', '&lt;f8'), ('Month_4', '&lt;f8'), ('LE_bowen_corr_mm_', '&lt;f8')])
  
  </code></pre>
  
  <p>Also its important to note that my data has 33 columns while the one returned is of shape <code>(7412,)</code>. What should I do to make it a pandas data frame ?? Also I wish it can return directly the dataframe as pandas because I dont want to end up cconverting the recarray into a numpy array and the numpy array to a pandas because when you do </p>
  
  <pre><code>pd.DataFrame(data=yourdata, columns=[...]) 
  </code></pre>
  
  <p>you have to specify the columns in the same order I have the <code>smogned</code> dataframe columns returned and I cannot control this at the moment </p>
  
  <p><strong>Information</strong></p>
  
  <ul>
  <li>numpy version 1.16.4</li>
  <li>pandas version 0.20.3</li>
  <li>rpy2 version 3.2.6</li>
  </ul>