The Stop and Wait protocol is a widely used method for achievingreliable data transmission in an unreliable communication channel. This protocol ensures data accuracy by utilizingacknowledgments and retransmission. This abstract presents an implementation of the Stopand Wait protocol using Python. The process involves establishing a connection betweena sender and receiver, dividingthe data into packets, and transmitting them one at a time. The sender waits for acknowledgments from the receiverand retransmits any lost packets. The receiver verifies the integrityof the received packets and sends acknowledgments to the sender.This iterative processcontinues until all data is successfully transmitted. The Python implementation provides a practical and versatile approach for simulating and testing reliabledata transmission, enablingdevelopers to evaluate the protocol's effectiveness and performance under different conditions and network scenarios.