PyQtGraphДata science is one of the post popular uses of Python, and building dashboards and analysis tools is a common use case of PyQt5. If you don't have an obvious base class to use, then you can use QWidget, the common base class of all Qt widgets. This gives you access to the base class properties, events and actions from within Qt Designer. For example, if you have a custom MyAwesomeButton button widget subclassed from QPushButton use QPushButton as the placeholder and promote it to MyAwesomeButton. If the custom widget you are adding is a subclass of an existing Qt widget, you may want to use the base class as your placeholder to promote from. In Qt this final step is referred to as promoting (as in promoting a base class). Tell Qt to replace your placeholder with your actual widget when building the UI.Add a placeholder widget to represent the custom widget you're adding.The principle of using placeholders in Qt Designer is quite straightforward. This tutorial will walk you through the process of using placeholders to include a PyQtGraph plot in your app from within Qt Designer. Helpfully, Qt Designer supports a mechanism for using placeholder widgets to represent your custom or external widgets in your design. As your applications get more complex however you may find yourself creating custom widgets, or using PyQt5 libraries such as PyQtGraph, who's widgets are not available within Designer. Qt Designer is a great tool for designing PyQt5 GUIs, allowing you to use the entire range of Qt5 widgets and layouts to construct your apps.

Install pyqt5 pycharm 3.4