Print to the same line and not a new line

Question

Basically I want to do the opposite of what this guy did    hehe   Python Script  Print new line each time to shell rather than update existing line  I have a program that is telling me how far along it is   for i in some list       do a bunch of stuff      print i len some list  100   percent complete    So if len some list  was 50  I d get that last line printed 50 times over  I want to print one line and keep updating that line  I know I know this is probably the lamest question you ll read all day  I just can t figure out the four words I need to put into google to get the answer   Update  I tried mvds  suggestion which SEEMED right  The new code  print percent complete              r     Percent complete is just a string  I was abstracting the first time now I an trying to be literal   The result now is that it runs the program  doesn t print ANYTHING until after the program is over  and then prints  100 percent complete  on one and only one line   Without the carriage return  but with the comma  half of mvds  suggestion  it prints nothing until the end  And then prints   0 percent complete     2 percent complete     3 percent complete     4 percent complete       And so on  So now the new issue is that with the comma it doesn t print until the program is finished   With the carriage return and no comma it behaves the exact same as with neither

User · Answer

If you are using Spyder  the lines just print continuously with all the previous solutions  A way to avoid that is using   for i in range 1000       print   r    str round i len df  100 1        complete   end         sys stdout flush

User · Answer

Try it like this   for i in some list       do a bunch of stuff      print i len some list  100   percent complete      With a comma at the end

User · Answer

Late to the game - but since the none of the answers worked for me  I didn t try them all  and I ve come upon this answer more than once in my search     In python 3  this solution is pretty elegant and I believe does exactly what the author is looking for  it updates a single statement on the same line  Note  you may have to do something special if the line shrinks instead of grows  like perhaps make the string a fixed length with padded spaces at the end   if   name         main         for i in range 100           print     end f  rPercentComplete   i              time sleep 0 2

User · Answer

If you are using Python 3  then this is for you and it really works   print value   sep    end      file   sys stdout   flush   False

User · Answer

Just figured this out on my own for showing a countdown but it would also work for a percentage   import time  Number of seconds to wait i 15  Until seconds has reached zero while i  gt  -1       Ensure string overwrites the previous line by adding spaces at end     print   r   seconds left      format i  end             time sleep 1          i- 1     print      Adds newline after it s done   As long as whatever comes after   r  is the same length or longer  including spaces  than the previous string  it will overwrite it on the same line  Just make sure you include the end    otherwise it will print to a newline  Hope that helps

User · Answer

for Console you ll probably need   sys stdout flush     to force update  I think using   in print will block stdout from flushing and somehow it won t update

User · Answer

import time import sys   def update pct w str       w str   str w str      sys stdout write   b    len w str       sys stdout write       len w str       sys stdout write   b    len w str       sys stdout write w str      sys stdout flush    for pct in range 0  101       update pct   n    format n str pct        time sleep 0 1     b will move the location of the cursor back one space So we move it back all the way to the beginning of the line We then write spaces to clear the current line - as we write spaces the cursor moves forward right by one So then we have to move the cursor back at the beginning of the line before we write our new data    Tested on Windows cmd using Python 2 7

User · Answer

For Python 3 6  and for any list rather than just ints  as well as using the entire width of your console window and not crossing over to a new line  you could use the following   note  please be informed  that the function get console with   will work only on Linux based systems  and as such you have to rewrite it to work on Windows   import os import time  def get console width           Returns the width of console       NOTE  The below implementation works only on Linux-based operating systems      If you wish to use it on another OS  please make sure to modify it appropriately              return int os popen  stty size    r   read   split   1     def range with progress list of elements          Iterate through list with a progress bar shown in console            Get the total number of elements of the given list      total   len list of elements        Get the width of currently used console  Subtract 2 from the value for the       edge characters     and         max width   get console width   - 2       Start iterating over the list      for index  element in enumerate list of elements             Compute how many characters should be printed as  done   It is simply           a percentage of work done multiplied by the width of the console  That           is  if we re on element 50 out of 100  that means we re 50  done  or           0 5  and we should mark half of the entire console as  done           done   int index   total   max width            Whatever is left  should be printed as  unfinished          remaining   max width - done           Print to the console          print f   done        remaining           end   r             yield the element to work with it         yield element       Finally  print the full line  If you wish  you can also print whitespace       so that the progress bar disappears once you are done  In that case do not       forget to add the  end  parameter to print function      print f   max width             if   name         main         list of elements     a    b    c    d    e    f    g    h    i    j       for e in range with progress list of elements           time sleep 0 2

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Based on Remi answer for Python 2 7  use this   from   future   import print function import time    status generator def range with status total           iterate from 0 to total and show progress in console         import sys     n   0     while n  lt  total          done          n   1          todo    -     total - n - 1          s     lt  0  gt   format done   todo          if not todo              s      n          if n  gt  0              s     r    s         print s  end   r           sys stdout flush           yield n         n    1     example for use of status generator for i in range with status 50       time sleep 0 2

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This works for me  hacked it once to see if it is possible  but never actually used in my program  GUI is so much nicer    import time f     4i     len to clear   len f  1 clear     x08   len to clear print  Progress in percent        len to clear   for i in range 123       print clear f    i 100  123       time sleep 0 4  raw input   nDone

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for object  quot pega quot  that provides StartRunning    StopRunning    boolean getIsRunning   and integer getProgress100   returning value in range of 0 to 100  this provides text progress bar while running    now   time time   timeout   now   30 0 last progress   -1  pega StartRunning    while now  lt  timeout and pega getIsRunning        time sleep 0 5      now   time time        progress   pega getTubProgress100       if progress    last progress          print   r      progress  -   100-progress        str progress     quot    quot   end     flush True          last progress   progress  pega StopRunning    progress   pega getTubProgress100   print   r      progress  -   100-progress        str progress     quot    quot   flush True

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For me  what worked was a combo of Remi s and siriusd s answers   from   future   import print function import sys  print str  end   r   sys stdout flush

User · Answer

From python 3 x you can do   print  bla bla   end        which can also be used in Python 2 6 or 2 7 by putting from   future   import print function at the top of your script module   Python console progressbar example   import time    status generator def range with status total           iterate from 0 to total and show progress in console         n 0     while n lt total          done        n 1          todo    -   total-n-1          s     lt  0  gt   format done todo          if not todo              s    n                  if n gt 0              s     r  s         print s  end             yield n         n  1    example for use of status generator for i in range with status 10       time sleep 0 1

User · Answer

As of end of 2020 and Python 3 8 5 on linux console for me only this works  print  some string   end   r   Credit goes to  This post

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For Python 3   for i in range 5       print str i      r   sep     end      file   sys stdout   flush   False

User · Answer

It s called the carriage return  or  r  Use  print i len some list  100   percent complete          r     The comma prevents print from adding a newline   and the spaces will keep the line clear from prior output   Also  don t forget to terminate with a print    to get at least a finalizing newline

User · Answer

In Python 3 3  you don   t need sys stdout flush    print string  end     flush True  works  So print  foo   end     print   rbar   end     flush True   will overwrite    foo    with    bar

[python] Print to the same line and not a new line?

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