What is the difference between abstract class and interface?

your preferred programming language ( i answered python ) - -tell me something about python ( basically they wanted to hear something about python and what i talk about ) -features of python ( indirectly they asked about features of python ) -what does hash sign do in python ? -how multi- line comments are added in python ? -python is interpreted or compiled language ? -which language is compiled and how it works ( behavior of compiled language). -how python behaves ( as it is a interpreted language ) -explain inheritance. -explain your projects. -were they group projects or not ( if yes then what was your role in those projects )