A calculator made using PYTHON GUI. This is a small learning initiative to use Python GUI
For clearing out the basic concepts about init() I would suggest the following link https://micropyramid.com/blog/understand-self-and-__init__-method-in-python-class/
Refering the following site will help a lot https://www.programiz.com/article/python-self-why
Tk provides the following widgets: button
canvas
checkbutton
combobox
entry
frame
label
labelframe
listbox
menu
menubutton
message
notebook
tk_optionMenu
panedwindow
progressbar
radiobutton
scale
scrollbar
separator
sizegrip
spinbox
text
treeview
The following site will help a lot in this due course https://pythonprogramming.net/python-3-tkinter-basics-tutorial/