Python - 模块内省

模块也是一等对象

当前模块内省

globals():
返回一个字典，表示当前的全局符号表。这个符号表始终针对当前模块（对函数或方法来说，是指定义它们的模块，
而不是调用他它们的模块）

# test_02.py

gol_num = 3

def a():
    print('a')


def b():
    print('b')


def c():
    print('c')


if __name__ == '__main__':
    resu = [k_v for k_v in globals().items()]
    print(resu)

    # for name in globals().items():
    #     print(name)      error:  RuntimeError: dictionary changed size during iteration

输出：

[('__name__', '__main__'), ('__doc__', None), ('__package__', None), ('__loader__', <_frozen_importlib_external.SourceFileLoader object at 0x0000026A265F4880>), ('__spec__', None), ('__annotations__', {}), ('__builtins__', <module 'builtins' (built-in)>), ('__file__', 'E:\\PyProject\\homework\\20220201\\test_02.py'), ('__cached__', None), ('gol_num', 3), ('a', <function a at 0x0000026A26533E20>), ('b', <function b at 0x0000026A2696ED40>), ('c', <function c at 0x0000026A2696EDD0>)]

其他模块

# test_01.py
import inspect
# 被检查的模块
import test_02

if __name__ == '__main__':

    # inspect.getmembers(module_name, inspect.isfunction):  注意：第一个参数是模块名称, 第二个参数没有()
    # name: 函数名字,  func: test_02中的函数对象
    for name, func in inspect.getmembers(test_02, inspect.isfunction):
        print(f"name:{name}, func:{func}")
        # 调用test_02.py 中的函数
        func()

out:

name:a, func:<function a at 0x00000220177DF640>
a func ran
name:b, func:<function b at 0x00000220178870A0>
b func ran
name:c, func:<function c at 0x0000022017887130>
c func ran