\r functionality

[Duncan Booth]

Jake wrote:

> in c and c++ there is a useful way to refresh an output line in printf
> and cout using \r meta command. So for example in the wget application
> the progress of the download is updated on the same output line of the
> screen. From an intital investigation python seems to lack this. Is
> this correct?
> 

>>> for i in range(10000):
...   print '\r',i,'and counting',
...
9999 and counting

(not obvious from the copy/paste of the output is that it also displayed 
the intervening numbers as it counted). The important thing is to end each 
print statement with a comma (or use sys.stdout.write).