The code is representing the Python framework called Kivy .
Kivy in python used to build a multi touch screen mobile application, Using Kivy - kv files we can design the front end
In the main.py we have codes for accessing the mobile application called "How you Feel?"
The application had Multi screen layout for Login , Signup , Signup Success ,Login Success ,Logout etc..
If we successfully loged in to the app,it will ask some question > Happy Sad Unloved Put Anything as a input it will give some random quotes related to the input
Once done we are converting the code into APK file using a library called buildozer, buildozer is nothing but a third party python library which is used to convert the code into APK The Apk file imported into a bin folder of the same directory