PYTHON随笔-打印错误堆栈
import sys
import traceback
def print_traceback():
'打印通常的回溯信息，且附有每帧中的局部变量的列表'
tb=sys.exc_info()[2] #返回当前异常的(type,value,traceback)
while tb.tb_next:
tb=tb.tb_next #栈中的下一个traceback对象
stack=[]
f=tb.tb_frame #每个traceback对应一个帧
while f:
stack.append(f) #stack存放指向帧对象的所有引用
f=f.f_back
stack.reverse()
traceback.print_exc()
log("ERROR", 'locals by frame,innermost last')
for frame in stack:
log("ERROR", ' Frame %s in %s at line %s'%(frame.f_code.co_name,
frame.f_code.co_filename,
frame.f_lineno))
[ log("ERROR", ' {}:{}'.format(key, value)) for key,value in frame.f_locals.items() ]