inspect模块的使用

#获取python函数参数的名称和默认值，返回一个命名的元组
inspect.getfullargspec(func)

#返回调用者堆栈的帧记录列表，返回列表中的每一条为调用者，最后一条为堆栈上最外层的调用者
inspect.stack(context=1)

inspect.stack()的结果会随着调用层数的变化而变化
stack=inspect.stack()
print(stack)
#[FrameInfo(frame=<frame object at 0x000001F3A7201C88>,
# filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘,
# lineno=34, function=‘<module>‘,
# code_context=[‘stack=inspect.stack()\n‘], index=0)]

def run():
    stack=inspect.stack()
    print(stack)
run()
# [FrameInfo(frame=<frame object at 0x0000019BD0706CA8>,
# filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘,
# lineno=43, function=‘run‘,
#  code_context=[‘    stack=inspect.stack()\n‘], index=0),
# FrameInfo(frame=<frame object at 0x0000019BCE31FA48>,
# filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘,
# lineno=50, function=‘<module>‘, code_context=[‘run()\n‘], index=0)]

def person():
    def run():
        stack=inspect.stack()
        print(stack)
    return run()
person()
# [FrameInfo(frame=<frame object at 0x0000017020FCE048>, filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘, lineno=58, function=‘run‘, code_context=[‘        stack=inspect.stack()\n‘], index=0), 
# FrameInfo(frame=<frame object at 0x00000170202FB808>, filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘, lineno=60, function=‘person‘, code_context=[‘    return run()\n‘], index=0), 
# FrameInfo(frame=<frame object at 0x000001701E06FA38>, filename=‘D:/PycharmProjects/flask/flask_demo/app.py‘, lineno=61, function=‘<module>‘, code_context=[‘person()\n‘], index=0)]