26

For example, if a python script will spit out a string giving the path of a newly written file that I'm going to edit immediately after running the script, it would be very nice to have it directly sent to the system clipboard rather than STDOUT.

2
  • The solution would be OS dependent, is that alright? Commented Sep 30, 2011 at 4:50
  • @NullUserExceptionఠ_ఠ I assume it would be, but I'm working entirely inside Linux, so I would like a solution for Linux.
    – nye17
    Commented Sep 30, 2011 at 4:51

4 Answers 4

32

You can use an external program, xsel:

from subprocess import Popen, PIPE
p = Popen(['xsel','-pi'], stdin=PIPE)
p.communicate(input='Hello, World')

With xsel, you can set the clipboard you want to work on.

  • -p works with the PRIMARY selection. That's the middle click one.
  • -s works with the SECONDARY selection. I don't know if this is used anymore.
  • -b works with the CLIPBOARD selection. That's your Ctrl + V one.

Read more about X's clipboards here and here.

A quick and dirty function I created to handle this:

def paste(str, p=True, c=True):
    from subprocess import Popen, PIPE

    if p:
        p = Popen(['xsel', '-pi'], stdin=PIPE)
        p.communicate(input=str)
    if c:
        p = Popen(['xsel', '-bi'], stdin=PIPE)
        p.communicate(input=str)

paste('Hello', False)    # pastes to CLIPBOARD only
paste('Hello', c=False)  # pastes to PRIMARY only
paste('Hello')           # pastes to both

You can also try pyGTK's clipboard :

import pygtk
pygtk.require('2.0')
import gtk

clipboard = gtk.clipboard_get()

clipboard.set_text('Hello, World')
clipboard.store()

This works with the Ctrl + V selection for me.

15
  • I tested this snippet but it seems it doesn't work for my settings. After doing python abovescript.py, then I middle-clicked my mouse in the terminal, but no Hello, World shows up.
    – nye17
    Commented Sep 30, 2011 at 5:01
  • @nye17 Which method are you trying? Does it give you any errors? Commented Sep 30, 2011 at 5:03
  • 1
    The first clipboard one, doesn't work but no errors reported at all.
    – nye17
    Commented Sep 30, 2011 at 5:04
  • There are two different clipboards in most Linux systems - the middle click and the ctrl+c/ctrl+v clipboards. check the other one - the middle click clipboard is managed at a lower level then GTK IIRC. Commented Sep 30, 2011 at 5:05
  • The second xsel doesn't work either. Could it be because of my window manager? I'm using terminator under Xmoand in Debian.
    – nye17
    Commented Sep 30, 2011 at 5:06
17

As it was posted in another answer, if you want to solve that within python, you can use Pyperclip which has the added benefit of being cross-platform.

>>> import pyperclip
>>> pyperclip.copy('The text to be copied to the clipboard.')
>>> pyperclip.paste()
'The text to be copied to the clipboard.'
9

This is not really a Python question but a shell question. You already can send the output of a Python script (or any command) to the clipboard instead of standard out, by piping the output of the Python script into the xclip command.

myscript.py | xclip

If xclip is not already installed on your system (it isn't by default), this is how you get it:

sudo apt-get install xclip

If you wanted to do it directly from your Python script I guess you could shell out and run the xclip command using os.system() which is simple but deprecated. There are a number of ways to do this (see the subprocess module for the current official way). The command you'd want to execute is something like:

echo -n /path/goes/here | xclip

Bonus: Under Mac OS X, you can do the same thing by piping into pbcopy.

7
  • I prefer if the string specified by the script be sent to the clipboard, rather than all the output being piped to xclip, as the final output and the desired string are not necessarily the same. But you are right, I can use subprocess to send it to xclip, although I would prefer a slightly less "brute-force" way.
    – nye17
    Commented Sep 30, 2011 at 5:13
  • doing it in python is nicer - allows the code to have more output than just a filename... Commented Sep 30, 2011 at 5:15
  • Add a command-line flag to suppress everything but the pathname, then, or to optionally send it to standard error (so you can pipe it to xclip without catching the rest). You need a command-line flag anyway since you don't want to clobber the user's clipboard without being explicitly told to, so why not make it more unixy?
    – kindall
    Commented Sep 30, 2011 at 5:20
  • @kindall This time I wanna go for more pythonic ;-)
    – nye17
    Commented Sep 30, 2011 at 5:32
  • A good reason not to use xclip: you don't control the shell environment necessarily. None of the cloud servers that I work on provide xsel or xclip, so a pure-python solution is much preferred.
    – Stabledog
    Commented Jul 9, 2015 at 17:41
2

As others have pointed out this is not "Python and batteries" as it involves GUI operations. So It is platform dependent. If you are on windows you can use win32 Python Module and Access win32 clipboard operations. My suggestion though would be picking up one GUI toolkit (PyQT/PySide for QT, PyGTK for GTK+ or wxPython for wxWidgets). Then use the clipboard operations. If you don’t need the heavy weight things of toolkits then make your wrapper which will use win32 package on windows and whatever is available on other platform and switch accordingly!

For wxPython here are some helpful links:

http://www.wxpython.org/docs/api/wx.Clipboard-class.html

http://wiki.wxpython.org/ClipBoard

http://www.python-forum.org/pythonforum/viewtopic.php?f=1&t=25549

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