append_clipboard.py

import gi
gi.require_version('Notify', '0.7')
from gi.repository import Notify
import subprocess
import os
import sys

def send_notif(n,title, text):
    try:
        if Notify.init(__file__):
            # n = Notify.Notification.new("Notify")
            n.update(title, text)
            n.set_urgency(2)
            if not n.show():
                raise SyntaxError("sending notification failed!")
        else:
            raise SyntaxError("can't initialize notification!")
    except SyntaxError as error:
        print(error)
        if error == "sending notification failed!":
            Notify.uninit()
    else:
        Notify.uninit()

# This script is meant to be bound to keyboard shortcut
#def send_notification(title, text):
#    Notify.init(sys.argv[0])
#    n = Notify.Notification.new(title, text)
#    n.show()


def run_cmd(cmdlist):
    # function for running 
    try:
        stdout = subprocess.check_output(cmdlist)
    except subprocess.CalledProcessError:
          print('Error')
          print(cmdlist)
          send_notif(sys.argv[0],"Clipboard error")
          #sys.exit(1)
          #pass
    else:
        if stdout:
            return  stdout


def main():

   # get contents of both clipboards
   clip = primary = ""
   clip = run_cmd("xclip -o -sel clip".split())
   primary = run_cmd("xclip -o -sel primary".split())
   print(primary)
   
   # write to temp file contents
   # of both clipboards appended
   temp_file = "/tmp/append.clip"
   with open(temp_file, "w") as f:
       try:
           f.write( clip + primary  )
       except:
           pass
   if os.path.isfile(temp_file):

       # Read the new contents into clipboard
       read_file = "xclip -sel clip " + temp_file
       subprocess.call(read_file.split())

       # clean up
       os.remove(temp_file)

if __name__ == '__main__':
   notif = Notify.Notification.new("Notify")
   main()