My book Create Simple GUI Applications with Python & Qt5 has been updated! New chapters on the Model View architecture and custom widgets.
Pathomx is a workflow-based data analysis tool built on IPython. It began as a metabolomic-analysis toolkit, but has extended to support general data analysis workflows. It aims to be simple to use for non-experts while powerful enough for complex analysis tasks. Key to both of these goals is the ability to create 'custom tools' that can be drag-dropped together to form larger workflows.
Below is a short snippet to implement a color-picker attached to a button in Qt. Clicking on the button pops up a dialog (native) to select a color. The color is shown by the color of the button face. A right-click option is included to allow clearing of the color setting (returning the value to None).
Signals are a neat feature of Qt that allow message-passing between different areas of your program.
I'd had success using py2app for building Mac binaries for distribution but wanted to give cx_Freeze a go since it's cross platform - allowing builds for Windows, Linux, and more. Unfortunately, attempting to build using cx_Freeze was resulting in errors: