Already existing keys inside of mods.settings causes crash

[Arkhorse]

If you use a modlist or happen to have a mod already in that file when the program reads the file, it will do one of two things: Either wipe the file entirely, giving an error that the key already exists, or if you try launching the program, it will crash with the same error.

I am assuming this is due to not handling this situation when you read the file. I have pasted what I think might be a solution to this issue, though it is not complete.

    def readPriority(self):
        self.priority.clear()
        file = os.path.join(self.__userSettingsPath, '/mods.settings')
        try:
            ########################################
            ############## Changes #################
            ########################################
            # encoding is always utf-8
            # specifying the 'r' arguement prevents the program from wiping a file when it encounters an error, as its only permitted to read
            # Further improvements can be made if you do a if statement looking to see if the mods priority already exists.
                # Example for the above:
                # priority = deepcopy(self.priority)
                #   if i in priority: << i would be the index of the priority list, you would want to compare the expected list with the actual list
                #       pass <<< This is where you would want to read the priority that already exists
            # self.priority.read(file, encoding=detectEncoding(file))
            self.priority.read(file, 'r', encoding="utf-8") 
        except Exception as e:
            MessageAlertReadingConfigINI(file, e)