Find a GUI framework that integrates with a graphing/plotting framework about pythonloanladder HOT 5 CLOSED

Reference commit b21d163 and main.py at this point in history for what the GUI will need. Strictly speaking, this commit is related only to loan and repayment information.

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I think PyQt5 is going to be the framework of choice for integration with matplotlib. I'm going to play around on a new branch (PyQT) with it and try to get familiar with it. The integration is pretty good, apparently matplotlib can just nest inside a Qt window as a child.

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Check out the PyQt branch for inspiration and guidance on PyQt and matplotlib integration. It's not commented, but it's relatively straightforward. 90% of the code in Window.py is boilerplate just to get the window showing. The plotting functionality in AmortizationView.py had to be refactored slightly to operate specifically on a figure instead of calling plot directly.

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I think a good option for AmortizationView now is to be split off into two classes, one standalone application which can run by itself, and another which can be a child figure in a window. The child figure would follow the example given here https://matplotlib.org/3.1.1/gallery/subplots_axes_and_figures/custom_figure_class.html#sphx-glr-gallery-subplots-axes-and-figures-custom-figure-class-py.

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AmortizationView and Window classes are refactored and working as expected at the moment.

Further improvements will be along the lines of interactivity. Sliders, text input, visualization, etc.

Closing this issue as we are moving out of scope. PyQT5 is a decent window library for a desktop application, and we're at a point where it's going to be a time to decide if it will be better to continue with the desktop app or move the entire thing into a web framework.

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