从Python调用堆栈获取行号等信息

import os
import sys


def get_cur_info():
	"""
        获取调用时的文件名，行号，上层调用者的名称
        :return: 文件名，行号，上层调用者名称
    """
	try:
		current_frame = sys._getframe(2)
		return os.path.basename(current_frame.f_code.co_filename), current_frame.f_lineno, current_frame.f_code.co_name
	except ValueError:
		return 'unknown', 0, 'unknown'

import os
import inspect

def get_cur_info():
	try:
		current_frame = inspect.currentframe(2)
		return os.path.basename(current_frame.f_code.co_filename), current_frame.f_lineno, current_frame.f_code.co_name
	except ValueError:
		return 'unknown', 0, 'unknown'


def produce():
	return get_cur_info()


def business():
	return produce()


if __name__ == '__main__':
	print(get_cur_info())  # 输出 ('unknown', 0, 'unknown')

	print(produce())  # 输出 ('a.py', 22, '<module>')

	print(business())  # 输出 ('a.py', 16, 'business')

>>> help(inspect.currentframe)
Help on built-in function _getframe in module sys:

_getframe(...)
    _getframe([depth]) -> frameobject
    
    Return a frame object from the call stack.  If optional integer depth is
    given, return the frame object that many calls below the top of the stack.
    If that is deeper than the call stack, ValueError is raised.  The default
    for depth is zero, returning the frame at the top of the call stack.
    
    This function should be used for internal and specialized
    purposes only.

if hasattr(sys, '_getframe'):
    currentframe = sys._getframe
else:
    currentframe = lambda _=None: None