Output to the same line overwriting previous

Question

how to get output to the same line by overwriting previous received Timing(countdown) by NTP server. As shown below after each second timing is receiving in next row.

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Answer 1

I am using python 2.7

python --version
Python 2.7.12 :: Anaconda 4.1.1 (64-bit)

and I am using this the following function as a hook to display the download progress, by using urllib.urlretrieve

def hook(bcount , bsize, tsize ):
    str = "[ %3d%% of %10d] \r" % (bcount * bsize * 100/tsize , tsize)    
    print str,

urllib.urlretrieve (url, file_name, hook)

Explanation: the \r put the cursor at start of the line , and the comma avoid to print in a new line , if you have the same number of character for each print , this will do the trick

if you are curious about urllib and the hook I am using you'll find the doc https://docs.python.org/2/library/urllib.html