IDLE is described as 'Default IDE which come installed with the Python programming language. It aims to be simple and intuitive, and is especially useful for programmers just learning Python. The editor has syntax highlighting, search features, class browsers, and runs Python scripts in a separate' and is a IDE in the development category. There are more than 25 alternatives to IDLE for a variety of platforms, including Windows, Linux, Mac, BSD and Android Tablet apps. The best IDLE alternative is Eclipse, which is both free and Open Source. Other great apps like IDLE are PyCharm, IPython, Thonny and PyDev.
it has a vast keyword library