How to keep Console area fixed for a thread

[Nikunj.Badjatya at emc.com]

Hi All,

Please look at the code below.
I am using pypi progressbar. But in general, How can I keep the area of the console fixed for  the thread to print its status on it.

{{{
import sys
import time
import threading
import os

from progressbar import AnimatedMarker, Bar, BouncingBar, Counter, ETA, \
                        FileTransferSpeed, FormatLabel, Percentage, \
                        ProgressBar, ReverseBar, RotatingMarker, \
                        SimpleProgress, Timer

def ProgBar():
    widgets = [' ', Percentage(), ' ', Bar(marker='#',left='[',right=']'),' ']
    pbar = ProgressBar(widgets=widgets, maxval=100)
    pbar.start()
    return pbar

def update2(i):
    os.environ["PBAR"] = i
    print("This will print for every call to update")
    return



class MyThread(threading.Thread):
    def run(self):
        l = 0
        while True:
            n = os.getenv("PBAR", "")
            if len(n) != 0:
                n = int(n)
                if n > l:
                    pbar.update(n)
                    l = n
                    if n == 100:
                        break
                else:
                    continue

pbar = ProgBar()
mythread = MyThread()
mythread.daemon = True
mythread.start()


for i in range(101):
    update2("{0}".format(i))
    time.sleep(0.25)

  }}}

{{{
Output:

[cid:image002.jpg at 01CCAAEC.CFE44870]


}}}

But I require the output to be of type:
{{{
13%  [###########                               ]
This will print for every call to update
This will print for every call to update
This will print for every call to update
This will print for every call to update
This will print for every call to update
}}}

This is just a sample piece of code for narrowing down the problem.
How can I fix the cursor position fix for the thread which is updating my progressbar .?

Thanks
Nikunj
Bangalore-India




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