Installation of dependencies

The dependencies Ghostscript and Tkinter can be installed using your system’s package manager or by running their installer.

OS-specific instructions


$ apt install ghostscript python3-tk


$ brew install ghostscript tcl-tk


For Ghostscript, you can get the installer at their downloads page. And for Tkinter, you can download the ActiveTcl Community Edition from ActiveState.

Checks to see if dependencies are installed correctly

You can run the following checks to see if the dependencies were installed correctly.

For Ghostscript

Open the Python REPL and run the following:

For Ubuntu/MacOS:

>>> from ctypes.util import find_library
>>> find_library("gs")

For Windows:

>>> import ctypes
>>> from ctypes.util import find_library
>>> find_library("".join(("gsdll", str(ctypes.sizeof(ctypes.c_voidp) * 8), ".dll")))

Check: The output of the find_library function should not be empty.

If the output is empty, then it’s possible that the Ghostscript library is not available one of the LD_LIBRARY_PATH/DYLD_LIBRARY_PATH/PATH variables depending on your operating system. In this case, you may have to modify one of those path variables.

For Tkinter

Launch Python and then import Tkinter:

>>> import tkinter

Check: Importing tkinter should not raise an import error.