Tkinter is a Graphical User Interface (GUI) toolkit you should try out if you want to explore the power of Python in creating desktop apps.

Typically, you don't need to install tkinter separately if you've installed a later version of Python, starting with Python 3. The library may not work with old Python versions, though. This is a common problem for Mac and Linux users, as these OSes usually come with older versions of Python by default.

Generally, to use the tkinter module, ensure that you download and install the latest compatible version of Python on your PC from the official python.org website.