From: Mark Day <mday@...>
Date: 2007-05-10T09:49:30+09:00
Subject: Re: Ruby Performance - LOW ?

On May 9, 2007, at 5:37 PM, Alex Young wrote:

>> Let's say we're doing some intense calculations
>> and we want to show a simple progress indicator:
>> 40.times {
>>  print "."
>>
>>  time_consuming_routine
>> }
>> puts "\nFinished."
>> And the output is
>> ........................................
>> Finished.
> <snip>
>> Can you figure out how to do this trivial task
>> in Python?
> Not hard.  Trivial, in fact.
>
> for i in range(0,40):

You don't actually need the "0," part there.  "for i in range(40):"  
would be more typical.

>  sys.stdout.write('.')
>  time_consuming_routine()
>
> sys.stdout.write("\nFinished.")

Note that due to buffering of standard output, both snippets may not  
actually produce any output until the final puts/print.  In the Ruby  
script, add "$stdout.flush" after the print.  In Python, add  
"sys.stdout.flush()" after the sys.stdout.write.

-Mark