Introduction to two built-in modules in Python and two built-in modules in python

Source: Internet
Author: User
Tags builtin

Introduction to two built-in modules in Python and two built-in modules in python

After using Python for a while, we can say that the basic unit of Python is the module. When using the module, we generally use the import Statement to import it, however, when we haven't imported any modules, we can use such functions: int (), str (), len (), range (), and where can we use the try again t statement to capture exceptions.

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

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