copy_xclip hangs the terminal when you try to exit

[ngn13]

user@host~# python3
>>> import pyperclip
>>> pyperclip.copy("test")
>>> exit()
user@host~# exit
(terminal hangs)

xclip -selection c still runs in the background after copy_xclip() function, which prevents the terminal from exiting. I think adding something like

subprocess.call(["killall", "xclip"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

would solve the problem.