Contacts Book using tkinter

Link to code: https://github.com/demals/pythonblog/blob/master/Contacts.py

Link to code: http://bit.ly/2SSpMpC

The more questions you ask the smarter it get!

Link to code: http://bit.ly/2R398Xj

Link to code: http://bit.ly/2ErkI7I

Link to code: http://bit.ly/2Saf5PA

Python decimal to binary converter without using bin()

Link to code: http://bit.ly/2URwspW

Link to code: http://bit.ly/2STMa1X

Link to code: http://bit.ly/2Gq603B

Link to code: http://bit.ly/2BsFWzf

Link to code: http://bit.ly/2RDcRrr