Upgrade to Python3.9+ (update: already done in source.. release out of date)

[JJones780]

I'm on Python 3.11.
In spatialmedia/gui.py I had to change

import tkFileDialog
import tkMessage

to

from tkinter import filedialog
from tkinter import tkmessage

and
from TKinter import *
to
from tkinter import *

and all 2 instances of tkFileDialog to filedialog
and all 1 instance of tkMessageBox to messagebox

Then in spatialdata/metadata_utils.py
I changed
for child in parsed_xml.getchildren():
to
for child in parsed_xml:

[jamiesonpepper]

I believe this is currently working the same in main/master but requires you to pull and build the .spec file via pyinstaller. I tested with 3.10 on Linux, Mac (older version Mohave I think?) and Windows 10, but have not released new binaries as I am working on a web-based UI in a Docker container.

Refs for fixes in main:

https://github.com/google/spatial-media/pull/227/files
https://github.com/google/spatial-media/pull/262/files

[JJones780]

my apologies, I had just downloaded the recent binaries instead of the source tree.
Maybe this should be left open for others until a new release is made?

[jamiesonpepper]

I can leave it open, but I don't intend to make a new release for it and will be focusing on building out a Web UI to compliment the Docker implementation.