multiple prints on the same line in Python

Question

I want to run a script  which basically shows an output like this   Installing XXX                   DONE    Currently  I print Installing XXX    first and then I print  DONE    However  I now want to print Installing xxx    and  DONE  on the same line   Any ideas

User · Answer

None of the answers worked for me since they all paused until a new line was encountered. I wrote a simple helper:

def print_no_newline(string):
    import sys
    sys.stdout.write(string)
    sys.stdout.flush()

To test it:

import time
print_no_newline('hello ')
# Simulate a long task
time.sleep(2)
print('world')

"hello " will first print out and flush to the screen before the sleep. After that you can use standard print.

User · Answer

You should use backspace   r  or    x08   char to go back on previous position in console output  Python 2    import time import sys  def backspace n       sys stdout write  b  x08    n  decode      use  x08 char to go back     for i in range 101                            for 0 to 100     s   str i                                 string for output     sys stdout write s                        just print     sys stdout flush                          needed for flush when using  x08     backspace len s                           back n chars         time sleep 0 2                            sleep for 200ms   Python 3   import time     def backline                print   r   end                           use   r  to go back   for i in range 101                            for 0 to 100     s   str i                                 string for output     print s  end                              just print and flush     backline                                  back to the beginning of line         time sleep 0 2                            sleep for 200ms   This code will count from 0  to 100  on one line  Final value will be    gt  python test py 100    Additional info about flush in this case here  Why do python print statements that contain   39 end   39  arguments behave differently in while-loops

User · Answer

You can simply use this   print  something       print   else     and the output will be  something else   no need to overkill by import sys  Pay attention to comma symbol at the end   Python 3  print  some string   end      to remove the newline insert at the end  Read more by help print

User · Answer

Use sys stdout write  Installing XXX       and sys stdout write  Done    In this way  you have to add the new line by hand with   n  if you want to recreate the print functionality  I think that it might be unnecessary to use curses just for this

User · Answer

Most simple  Python 3     print   r     something to be override   end      It means it will back the cursor to beginning  than will print something and will end in the same line  If in a loop it will start printing in the same place it starts

User · Answer

If you want to overwrite the previous line  rather than continually adding to it   you can combine  r with  print    at the end of the print statement  For example   from time import sleep  for i in xrange 0  10       print   r 0   format i        sleep  5   print     DONE      will count 0 to 9  replacing the old number in the console  The     DONE   will print on the same line as the last counter  9   In your case for the OP  this would allow the console to display percent complete of the install as a  progress bar   where you can define a begin and end character position  and update the markers in between   print  Installing  XXXXXX                30

User · Answer

Found this Quora post  with this example which worked for me  python 3   which was closer to what I needed it for  i e  erasing the whole previous line    The example they provide   def clock       while True         print datetime now   strftime   H  M  S    end   r     For printing the on the same line  as others have suggested  just use end

User · Answer

Print has an optional end argument  it is what printed in the end  The default is a newline  but you can change it to empty string  e g  print  hello world    end

User · Answer

You can use the print statement to do this without importing sys   def install xxx       print  Installing XXX             install xxx   print   DONE     The comma on the end of the print line prevents print from issuing a new line  you should note that there will be an extra space at the end of the output    The Python 3 Solution Since the above does not work in Python 3  you can do this instead  again  without importing sys    def install xxx        print  Installing XXX            end     flush True   install xxx   print   DONE      The print function accepts an end parameter which defaults to   n   Setting it to an empty string prevents it from issuing a new line at the end of the line

User · Answer

I found this solution  and it s working on Python 2 7    Working on Python 2 7 Linux  import time import sys   def backspace n       print   r   end                           use   r  to go back   for i in range 101                            for 0 to 100     s   str i                                 string for output     sys stdout write string      backspace len s                           back for n chars     sys stdout flush       time sleep 0 2                            sleep for 200ms

User · Answer

Here a 2 7-compatible version derived from the 3 0 version by  Vadim-Zin4uk   Python 2  import time  for i in range 101                            for 0 to 100     s   str i                                 string for output     print   0  r  format s                    just print and flush      time sleep 0 2    For that matter  the 3 0 solution provided looks a little bloated  For example  the backspace method doesn t make use of the integer argument and could probably be done away with altogether   Python 3  import time  for i in range 101                            for 0 to 100     s   str i                                 string for output     print   0  r  format s   end              just print and flush      time sleep 0 2                            sleep for 200ms   Both have been tested and work

User · Answer

Python appends newline as an end to print  Use end     for python3 for  print method to append a space instead of a newline  for python2 use comma at end of print statement   print  Foo  end      print  Bar

User · Answer

sys stdout write will print without return carriage  import sys sys stdout write  installing xxx   sys stdout write        http   en wikibooks org wiki Python Programming Input and output printing without commas or newlines

User · Answer

print   has a built in parameter  end  that is by default set to   n   Calling print  This is America   is actually calling print  This is America   end     n    An easy way to do is to call print  This is America   end

User · Answer

This is a very old thread  but here s a very thorough answer and sample code    r is the string representation of Carriage Return from the ASCII character set  It s the same as octal 015  chr 0o15   or hexidecimal 0d  chr 0x0d   or decimal 13  chr 13    See man ascii for a boring read  It   r  is a pretty portable representation and is easy enough for people to read  It very simply means to move the carriage on the typewriter all the way back to the start without advancing the paper  It s the CR part of CRLF which means Carriage Return and Line Feed   print   is a function in Python 3  In Python 2  any version that you d be interested in using   print can be forced into a function by importing its definition from the   future   module  The benefit of the print function is that you can specify what to print at the end  overriding the default behavior of  n to print a newline at the end of every print   call   sys stdout flush tells Python to flush the output of standard output  which is where you send output with print   unless you specify otherwise  You can also get the same behavior by running with python -u or setting environment variable PYTHONUNBUFFERED 1  thereby skipping the import sys and sys stdout flush   calls  The amount you gain by doing that is almost exactly zero and isn t very easy to debug if you conveniently forget that you have to do that step before your application behaves properly   And a sample  Note that this runs perfectly in Python 2 or 3   from   future   import print function  import sys import time  ANS   42 FACTORS    n for n in range 1  ANS   1  if ANS   n    0   for i in range 1  ANS   1       if i in FACTORS          print   r 0 d   format i   end             sys stdout flush           time sleep ANS   100 0  else      print

User · Answer

This simple example will print 1-10 on the same line   for i in range 1 11       print  i  end

User · Answer

Just in case you have pre-stored the values in an array  you can call them in the following format   for i in range 0 n          print arr i

[python] multiple prints on the same line in Python

Examples related to python

Examples related to printing

Examples related to stdout

Examples related to line-breaks