title: Shifting multi-column data to the left Pandas Dataframe
body: <p>I'd like to make whole columns data moved to left.
  Only data should be shifted to the left 1 time and the columns should be fixed. 
  Could you tell me how can I do this?</p>
  
  <blockquote>
    <p>Initial Data is :</p>
  </blockquote>
  
  <pre><code>              A1   A2   A3   A4   A5
       #0001    421  000  000  777  888
       #0002    382  403  430  320  055
       #0003    441  304  403  403  403
       #0004    430  403  206  N/A  312
       #0005    N/A  394  493  N/A  403
  </code></pre>
  
  <blockquote>
    <p>Desire Data is : </p>
  </blockquote>
  
  <pre><code>              A1   A2   A3   A4   A5
       #0001    000  000  777  888  N/A
       #0002    403  430  320  055  N/A
       #0003    304  403  403  403  N/A
       #0004    403  206  N/A  312  N/A
       #0005    394  493  N/A  403  N/A
  </code></pre>