how can I active a simple button?

I created a pushbutton in python with pyqt5 packages and I want that this button active when I click on it and show me a massage

Hi,

When asking for help, it is advised to err on the side of giving too much information, e.g. platform, browser, and package versions, as well as example or complete code for what you tried, and a detailed description of what actually happened, and possibly screenshots or screen caps. For example, I'm not aware that Bokeh works with Qt5 at *all*, but you haven't provided enough information know know whether a button is not displaying at all, or whether it is displaying but simply not doing what you expect.

Thanks,

Bryan