How Python invokes the command-line progress bar

The example in this article describes the way Python invokes the command line progress bar. Share to everyone for your reference. The specific analysis is as follows:

The key point is that the output ' r ' can cause the cursor to go back to the beginning of the line, when the output will overwrite the original content.

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Import time Import sys def progress_test (): Bar_length=20 to percent in Xrange (0): hashes = ' # ' * INT (percent/100.0 * bar_length) spaces = ' * (Bar_length-len (hashes)) Sys.stdout.write ("Rpercent: [%s]%d%%"% (hashes + spaces, percent)) Sys.stdout.flush () time.sleep (1) progress_test ()

I hope this article will help you with your Python programming.