title: ValueError when reading a sas file with pandas
body: <p><strong>pandas.read_sas()</strong> prints traceback messages that I cannot remove. The problem is it prints messages for EACH row it's reading, so when I try to read the whole file it just freezes printing too much.</p>
  
  <p>I tried from other stackoverflow answers</p>
  
  <pre><code>import warnings
  warnings.simplefilter(action='ignore')
  </code></pre>
  
  <p>And </p>
  
  <pre><code>warnings.filterwarnings('ignore')
  </code></pre>
  
  <p>And</p>
  
  <pre><code>from IPython.display import HTML
  HTML('''&lt;script&gt;
  code_show_err=false; 
  function code_toggle_err() {
   if (code_show_err){
   $('div.output_stderr').hide();
   } else {
   $('div.output_stderr').show();
   }
   code_show_err = !code_show_err
  } 
  $( document ).ready(code_toggle_err);
  &lt;/script&gt;
  To toggle on/off output_stderr, click &lt;a 
  href="javascript:code_toggle_err()"&gt;here&lt;/a&gt;.''')
  </code></pre>
  
  <p>But nothing works.</p>
  
  <p>The message it prints is:</p>
  
  <blockquote>
    <p>--------------------------------------------------------------------------- ValueError                                Traceback (most recent call
    last) pandas\io\sas\sas.pyx in pandas.io.sas._sas.rle_decompress()</p>
    
    <p>ValueError: Unexpected non-zero end_of_first_byte</p>
    
    <p>Exception ignored in:
    'pandas.io.sas._sas.Parser.process_byte_array_with_data' Traceback
    (most recent call last):   File "pandas\io\sas\sas.pyx", line 29, in
    pandas.io.sas._sas.rle_decompress ValueError: Unexpected non-zero
    end_of_first_byte</p>
  </blockquote>