title: python pandas: get fiscal quarter from fiscal year and month (for UK)
body: <p>I have a dataframe with two useful columns 1) fiscal year, 2) date. I want to add a new column which shows the fiscal quarter.</p>
  
  <p>FYI - UK Financial year runs from 1 April to 31 March</p>
  
  <p>my data looks like:</p>
  
  <pre><code>    fiscal year  date
      FY15/16      2015-11-01
      FY14/15      2014-10-01
      FY15/16      2016-02-01
  </code></pre>
  
  <p>I want it to look like this:</p>
  
  <pre><code>    fiscal year  date        Quarter
      FY15/16      2015-11-01  q3
      FY14/15      2014-10-01  q3
      FY15/16      2016-02-01  q4
  </code></pre>
  
  <p>Really hope I got the quarters right!</p>
  
  <p>Code below works but I believe it returns American financial quarters but I want UK.</p>
  
  <pre><code>df['Quater'] = df['Date'].dt.quarter 
  </code></pre>