On 5/26/2013 4:22 PM, Roy Smith wrote:
In article <mailman.2196.1369599562.3114.python-l...@python.org>,
Terry Jan Reedy <tjre...@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.
This is a particularly egregious case of premature response. You're
ignoring an extra name lookup and two extra attribute lookups. That's silly.
That's beside the fact that one *must* choose, so any difference is a
reason to act rather than being frozen like Buridan's ass.
http://en.wikipedia.org/wiki/Buridan%27s_ass
If you wish, replace 'The reason' with 'A reason'. I also the logical
flow as better with the order given.
--
http://mail.python.org/mailman/listinfo/python-list
