Send by data transmission. Socket is a package that comes with python, and it is an intermediate software abstraction layer for communication between application layer and TCP or IP protocol. Pythonsocket can send floating-point data through data transmission. Floating-point data can be divided into floating-point constants and floating-point variables. Floating-point constants and real-number constants are also called floating-point types, and real-number constants are also called real numbers or floating-point numbers.