I am new to python and want to learn this from the basic.
I want to open two other application like notepad in a single window. I searched for any examples by using "tkinter". Any idea for implementing this using "tkinter". 
PS: two tabs one in left and one in right so that one tab will be having notepad and other will have a media player (let say) and i should be able to close the single parent window for closing this child windows.
For what you need, you will have to use libraries like tkinter or pyqt. As you want to learn it from the basic, I would suggest you to pick a GUI library and start learning it. Eventually you will know how to get the result that you desire.
Opening other application in single window using python