On 12/10/2010 12:14 PM Modulok said...
List,
Forgive me if I don't describe this well, I'm new to it:
Assume I'm working in a command shell on a terminal. Something like
tcsh on xterm, for example. I have a program which does *something*.
Let's say it counts down from 10. How do I print a value, and then
erase that value, replacing it with another value? Say I had something
like '10' that appears, then wait a second, then the 10 is replaced by
'9'... '8'.. and so forth. The point is, I don't want to print to a
new line, nor do I want the new number to appear next to the previous
number... I just want to change it in place. (If that makes any
sense?) Think of console based progress counters in programs like
fetch or wget, or lame.
How do you do this in Python?
-Modulok-
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The trick is starting python with the -u option:
em...@paj39:~$ python -u
Python 2.6.4rc2 (r264rc2:75497, Oct 20 2009, 02:55:11)
[GCC 4.4.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import time
>>> for ii in range(10):
... print " %s" % (ii,),
... time.sleep(2)
... print "\r",
...
>>>
Emile
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