Getting Tkinter to work in PyCharm using OSGeo4W64's Python

I am creating an external QGIS program that builds virtual rasters using the processing algorithm within QGIS. I have this working, but it is not very convenient since you need to type in each file name. I would like to create a file dialog box using Tkinter.

In PyCharm the code is colored like the import is working, but then once I run the code I get an error stating that I do not have the module _tkinter. I look in the Python library in my OSGeo directory and I see a folder called tkinter.

I went to the OSGeo Shell and created a python environment in which I tired importing tkinter and got this…

>>> import tkinter
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:OSGEO4~1appsPython37libtkinter__init__.py", line 36, in <module>
    import _tkinter # If this fails your Python may not be configured for Tk
ModuleNotFoundError: No module named '_tkinter'

Any ideas as to what is happening? Would installing pip and then installing tkinter through that work? I am not quite sure how to do that in OSGeo and fear messing something up so I have not tried.

If not, does anyone know of any alternative solution for my problem?