implot VS PyQtGraph

ImPlot is small and worth checking out if you don't want to make the plotting functions yourself. https://github.com/epezent/implot

Hello, this is a verbatim repost from ImPlot's GitHub discussion and there is also a 200 points bounty going on on SO, ATTOW.

If I'm already using ImGui in a program then I find ImPlot is great.

This is one of my favorites. For quick engineering prototypes, implot is extremely useful and there's wasm builds of it that work with WebGL. https://github.com/epezent/implot

Only saying this because writing a plotting library for IMGUI sounds like a project in itself, unless you can leverage something like https://github.com/epezent/implot (C++)

PyQtGraph - Interactive and realtime 2D/3D/Image plotting and science/engineering widgets.

Image, 3D, or data visualization applications using OpenCV and the SciPy ecosystem. The Graphics View Framework can display an image and let the user interact with it, and the Python ecosystem is very rich for image processing, data analysis, and visualization. For example, LabelMe for image labeling, PyQtGraph for scientific graphics, or custom QWidget integration in Maya.

I don't think that's related to your error though - from the backtrace, it looks like the plotWidget has plotItem attribute that's somehow been assiged to itself (or maybe some other PlotWidget) , so is just endlessly recursing as it tries to proxy the same attribute lookup (presumably 'clear') to itself. Looking at the source, the plotitem is either created as a new PlotItem() object if not provided, or passed in to the constructor, so I'd check how this gets initialised - eg. does this get set as a property in your .ui file? Are you setting it to the widget itself somehow?

I did something like this recently but I used pyqtgraph: https://www.pyqtgraph.org/

Ah, I agree, Matplotlib is for publication, so slow and pretty. For fast, I use pyqtgraph, which can do that 10 million point plot interaction. And since it's QT, it integrates seamlessly into QT applications.