On 3/06/11 13:00:22, TheSaint wrote:
I'd like to show 4~6 line of report and refreshing periodically all of them,
avoiding to scroll down.
example:
this count 50
Second time 90
following line 110
another line xxx
The lines should remain on their position and update their data.
The quick and dirty way would be to output VT100 sequences: they work
on most, if not all modern terminals and emulators.
For example, to move the cursor to the start of line 20 and clear the
rest of the screen:
sys.stdout.write("\033[20;0H\033[J")
Or to clear the first six lines and put the cursor in the top left:
for i in range(1, 7):
sys.stdout.write("\033[%d;0H\033[K" % i)
sys.stdout.write("\033[0;0H")
After doing that, you could print your report.
A minimalist solution would be to print the labels ("This count", etc.)
only once, and position the cursor after it to update the report.
I think, I should go for course module, but it's a bit of learning, which I
didn't embarked yet.
The module is called "curses" and, yes, it would be the best way to go.
-- HansM
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