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twenty-seven. Package (import)

2022-04-22 02:59:00 【Give me a name】

One .Python In the package

A package is a hierarchical directory structure , It organizes a group of modules with similar functions in a directory
effect ：
- Code specification
- Avoid module name conflicts
The difference between package and directory
- contain _int_.py The directory of the files is called package
- The directory usually does not contain _int_.py file
Package import
Use import When importing by , You can only follow the package name or module name
Use from ... import Functions can be imported

import  Package name . Module name 

form  Package name  import  Module name 

form  Package name . Module name  import  function

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