title: python ZeroDivisionError: float division by zero - how to treat it as an exception
body: <p>I need to calculate the percentage of winning rate and I am having trouble with ZeroDivisionError: float division by zero when there is zero in the denominator. I would like treat it as an exception, print zero and move on to next array. Any assistance would be appreciated. </p>
  
  <pre><code>YearWinLose1 = '0'
  YearWinLoseTotalHard2 = '0'
  
  YearWinLoseTotalHard2 = float(YearWinLose1) + float(YearWinLose1)
  YearWinLosePercent3 = float(YearWinLose1)/float(YearWinLoseTotalHard2)*100
  
  if YearWinLoseTotalHard2 == 0:
     YearWinLosePercent3 == 0
     print YearWinLosePercent3
  else: 
     print YearWinLosePercent3
  </code></pre>