Python - 常用内置变量

#!usr/bin/env python
# -*- coding:utf-8 _*-
"""
# author: 小菠萝测试笔记
# blog:  https://www.cnblogs.com/poloyy/
# time: 2021/7/21 11:29 下午
# file: 5_list 列表.py
"""
import keyword
from pprint import pprint
print(keyword.kwlist)
print(type)
type = 2
print(type)
# 内置变量
pprint(vars())

{'__annotations__': {},
 '__builtins__': <module 'builtins' (built-in)>,
 '__cached__': None,
 '__doc__': '\n'
            '# author: 小菠萝测试笔记\n'
            '# blog:  https://www.cnblogs.com/poloyy/\n'
            '# time: 2021/7/21 11:29 下午\n'
            '# file: 5_list 列表.py\n',
 '__file__': '/Users/polo/Documents/pylearn/第一章:python 基本类型/4_变量.py',
 '__loader__': <_frozen_importlib_external.SourceFileLoader object at 0x1085aafd0>,
 '__name__': '__main__',
 '__package__': None,
 '__spec__': None,
 'keyword': <module 'keyword' from '/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/keyword.py'>,
 'pprint': <function pprint at 0x108663430>,
 'type': 2}

"""
内置变量1.py
"""
#!/usr/bin/env python
# -*- coding: utf-8 -*-
print(__package__) # 输出None

"""
内置变量2.py
"""
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from test import 内置变量1.py
# 会输出 test ；输出导入的文件的目录

#!/usr/bin/env python
# -*- coding: utf-8 -*-
print(__name__)
if __name__ == '__main__':
    print("main")

__main__
main

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from test import 内置变量1.py