Multithreading in Python is a way to make the program run multiple tasks or threads concurrently. Each thread in a program performs a specific task. This is particularly useful in tasks that require a lot of waiting time, like reading or writing files, downloading from the internet, etc.
Python’s `threading` module provides the necessary functionalities for multithreading. However, due to the Global Interpreter Lock (GIL) in Python, true parallel execution cannot be achieved with multithreading because only one thread can execute in the interpreter at a single time.
Nevertheless, multithreading can still improve the program’s responsiveness and throughput, especially in I/O-bound or network-bound applications where the program spends most of its time waiting for data from the disk or network.
