View is Creating Multiple Instances of Data Source

[jbrucker]

Your view class creates multiple instances of the data source
(originally in file model.py and now apparently in data_analyze.py).

1. View (UI) should not create any instances of the model. Use dependency injection, or let the view "get" a reference from the controller:

   data = self.controller.get_dataset()

2. Regardless of how you do it, you should not create multiple instances of the data source (model). That wastes memory, time, and I/O.

In your view code:

    def init_data_information_tab(self):

        # name should be "columns" or "attributes", 
        # not "column" since there are many
        column = DataAnalyze().get_column_names()

    def handle_attribute_selection(self, selected_attribute):

        # Get data analyzer instance
        data_analyzer = DataAnalyze()

Its a matter of choice, but I think "DataAnalyze" is not a
descriptive name for the model class. It's not doing actual analysis.