Introduction to two built-in modules in Python

This article mainly introduces two built-in modules in Python. This article describes the two built-in modules that will be loaded by default after Python is started. if you need them, refer to the following, it can be said that the basic unit of Python is the module. when using the module, we generally use the import statement to import it, but when we do not import any modules, however, we can use functions such as int (), str (), len (), range (), and try again t to catch exceptions, so where did these come from.

Basic

At startup, Python automatically imports the built-in _ builtin _ and exceptions modules so that any program can use them, therefore, these two modules should be the most important modules in the Python language.

Extension

Some insiders about the implementation of these two modules:
_ Builtin __
Exceptions