Short-circuit Logic

[Roy Smith]

In article <mailman.2196.1369599562.3114.python-list at python.org>,
 Terry Jan Reedy <tjreedy at udel.edu> wrote:

> On 5/26/2013 7:11 AM, Ahmed Abdulshafy wrote:
> 
> >       if not allow_zero and abs(x) < sys.float_info.epsilon:
> >                  print("zero is not allowed")
> 
> The reason for the order is to do the easy calculation first and the 
> harder one only if the first passes.

This is a particularly egregious case of premature optimization.  You're 
worried about how long it takes to execute abs(x)?  That's silly.