What does python's import mean?

What does python’s import mean?

__import__() function is used to dynamically load classes and functions.

If a module changes frequently, you can use __import__() to dynamically load it.

Recommended: [Python Tutorial]

Grammar

__import__(name[, globals[, locals[, fromlist[, level]]]])

#!/usr/bin/env python    
#encoding: utf-8  
 
import os  
 
print ('在 a.py 文件中 %s' % id(os))

#!/usr/bin/env python    
#encoding: utf-8  
 
import sys  
__import__('a')        # 导入 a.py 模块

在 a.py 文件中 4394716136

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