:* We are interested in the '''object''' named '''__builtins__''' at this moment. We can ask the Python interpreter to tell us more about the '''__builtins__''' object by passing its name '''__builtins__builtins__''' as a the function argument to the '''dir()''' function: <source>>>> dir(__builtins__)

:* The above output shows a list of the so-called '''built-in run-time error codes''' items and '''bulit-in functionsfunction names''' items. We are going to learn how to use them effectively in order to save our coding effort when writing Python programs/scripts.