debugging, pycharm stops code at error

Using pycharm 2.7 I used to have some feature activated where if there is an error, whether it be TypeError or IndexError, Pycharm would stop the code right at the place where the error is and then I could look at the variables to see what the problem is.  Instead what happens is that it will exit out of the code and tell me at what line the error is located.  I then have to go back and place at 

try: 

      'some code here

except IndexError

In order to get the code to stop where I want.  Does anyone know how I activate that feature where Pycharm stops where the error occurs?