Problem Installing Image Horizon Library

[Adi Keshav]

Collecting robotframework-imagehorizonlibrary

  Using cached robotframework-imagehorizonlibrary-0.1.tar.gz

Requirement already satisfied: robotframework>=2.8 in /usr/lib/python2.7/site-packages (from robotframework-imagehorizonlibrary)

Collecting pyautogui>=0.9.30 (from robotframework-imagehorizonlibrary)

  Using cached PyAutoGUI-0.9.33.zip

    Complete output from command python setup.py egg_info:

    Traceback (most recent call last):

      File "<string>", line 1, in <module>

      File "/tmp/pip-build-ZsFMSz/pyautogui/setup.py", line 6, in <module>

        version=__import__('pyautogui').__version__,

      File "pyautogui/__init__.py", line 114, in <module>

        from . import _pyautogui_x11 as platformModule

      File "pyautogui/_pyautogui_x11.py", line 153, in <module>

        _display = Display(None) # TODO - Display() can have other values passed to it. Implement that later.

      File "/usr/lib/python2.7/site-packages/Xlib/display.py", line 83, in __init__

        self.display = _BaseDisplay(display)

      File "/usr/lib/python2.7/site-packages/Xlib/display.py", line 65, in __init__

        apply(protocol.display.Display.__init__, (self, ) + args, keys)

      File "/usr/lib/python2.7/site-packages/Xlib/protocol/display.py", line 49, in __init__

        self.socket = connect.get_socket(name, host, displayno)

      File "/usr/lib/python2.7/site-packages/Xlib/support/connect.py", line 79, in get_socket

        return mod.get_socket(dname, host, dno)

      File "/usr/lib/python2.7/site-packages/Xlib/support/unix_connect.py", line 92, in get_socket

        raise error.DisplayConnectionError(dname, str(val))

    Xlib.error.DisplayConnectionError: Can't connect to display ":200": [Errno 2] No such file or directory

    ----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ZsFMSz/pyautogui/

I am not sure what is causing that error

[Prashant]

Try Below Steps: 

pip install pillow==2.9.0

pip install pyobjc-core pyobjc

pip install robotframework-imagehorizonlibrary

-prashantb