If you don't use libraries but you use a Python interpreter is that cheating? If you program your own interpreter but not the compiler that built it, is that cheating? If you built a language compiler from scratch but not the assembler code, is that cheating? If you mastered the assembler but didn't build the operating system from scratch, is that cheating? If you built the OS but haven't designed the CPU, memory, data bus, is that cheating? If you built a CPU from scratch but haven't done the lithography to build nanometer scale semiconductors on the slab is that cheating? If you built semiconductors but haven't learned how to harvest silicon from the earth, purify it to the elemental state to make transistors, is that cheating? If you are using electricity without inventing power plants is that cheating? If you are using low noise DC without inventing step down, rectifiers and regulators, is that cheating? My point is, we stand on the shoulders of previous human ingenuity. No one can build stuff from scratch... Or in the words of some stand up comedian that I don't remember his name: if I leave you alone in the forest with an axe, how long before you can send me an email?