Syllabus of EMI Calculator using Tkinter Tkinter is is Python's de facto standard GUI. It comes with with standard Linux, Microsoft Windows and Mac OS X installs of Python. Importing Tkinter Library Creating and Empty GUI window using Tkinter Importing widgets like Button, Entry, Label etc. Placing widgets in Tkinter. Creating and executing a function on Button click Taking user input and applying mathematical operations. Printing results in a label and configuring its style