[Tutor] Loop comparison

[Alan Gauld]

>> > result = sum(range(1000000000))
>> >
>> > although it still took 10 minutes on my PC.
>>
>> Did you mean to say "minutes" or rather "seconds" here? And did you
>> really mean to use "range" or rather "xrange" (or "range" in Py3)?

Yes, minutes and in Python 3.
And on a 2.8GHz 2 core CPU with 2G RAM

>>      sum(xrange(1000000000))
>>
>> clearly runs in 12 seconds for me on Py2.6, 

Well over a minute on 2.5 under Cygwin.
Dropping by an order of magnitude took it down to 17 secs
Which is exactly the same in Python 3...

Alan G.