In python carriage return \r returns a musical note

Question

print "-------------------\r"

produces a musical note instead doing the carriage return. Why?

Thanks in advance for reply.

EDIT: I was using it in this code in order to change dinamically data by 'print' instead to re-print it all:

import math
import time

    while True:
        reading = read_world_2c(0x43) #it's a function for reading data from a sensor
        print "data:     \r", reading
        time.sleep(0.5)

OS? Version? Doesn't do it for me using Windows 7 3.4.0 in the IPython console. — Ffisegydd, Sep 24 '14 at 10:17
For most people it will not, in actual fact, produce a musical note. You'll have to provide more context here, like in what environment you are running this. — Martijn Pieters, Sep 24 '14 at 10:20
I am sorry. I am using Debian (Linux) in RaspberryPi with Python 2 and IDLE as IDE. — cyberdyne, Sep 24 '14 at 10:33
I have found this solution http://stackoverflow.com/questions/2122385/dynamic-terminal-printing-with-python but also in this case it returns the musical note in \r position. — cyberdyne, Sep 24 '14 at 10:54

score 3 · Accepted Answer · answered Sep 24 '14 at 10:20

3

That musical note is the symbol for line breaks. If you have MS Word or Notepad++ or similar, open or type some text and then find the menu command for "show nonprinting characters ". You will see those "musical notes" at the end of each line.

answered Sep 24 '14 at 10:20

Crowcoder

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Is there a way to replace 'break' with the carriage return \r for 'print' in Python? – cyberdyne Sep 24 '14 at 10:35
I don't think there is a problem with your code but I'm not a Python programmer. Try \n or os.linesep : http://stackoverflow.com/questions/454725/python-get-proper-line-ending – Crowcoder Sep 24 '14 at 10:58
the only '\n' works. I have used os.linesep in the shell and it returns only '\n'. I have read that it would return '\r\n'. – cyberdyne Sep 24 '14 at 11:12
1

@Orlok [This Stackoverflow question](http://stackoverflow.com/questions/15433188/r-n-r-n-what-is-the-difference-between-them) can tell you more about \r, \n, and \r\n. – MackM Sep 26 '14 at 16:19
I do not see any char. The IDLE doc, Help ==> IDLE Help, section User output in Shell discusses the printing of control characters. Result depends on OS and font, and possibly tcl/tk version. – Terry Jan Reedy Jun 11 '19 at 02:10

In python carriage return \r returns a musical note

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