如何在QTextBrowser (PyQt4)中使用Python在特定的必要点添加图像?

I am doing Text mining using python. I created a GUI using QT and transformed it into python snippet using PyQt4. I have QTextBrowser which indicates the sentiment index of the passage. Based on the score of the sentiment index I want to add different images into the Qtextbrowser. Below which I have added the screenshot of my tool.I am doing Text mining using python. I created