How does python record the call stack log implementation method?

This article mainly describes the Python record detailed call stack log method, involving Python call stack log related techniques, with a certain reference value, the need for friends can refer to the following

The example in this article describes how Python records verbose call stack logs. Share to everyone for your reference. The implementation method is as follows:

Import Sysimport osdef Detailtrace (info):  retstr = ""  curindex=0  f = sys._getframe ()  f = f.f_back    # First frame is detailtrace, ignore it while  Hasattr (f, "F_code"):    co = f.f_code    retstr = "%s (%s:%s)"% (OS . Path.basename (Co.co_filename),         co.co_name,         F.f_lineno) + retstr    f = f.f_back  print retstr+ Infodef foo ():  detailtrace ("Hello World") def Bar ():  foo () def main ():  bar () if name = = "Main":  Main ()

Output:

aaa1.py (<module>:27)->aaa1.py (main:24)->aaa1.py (bar:21)->aaa1.py (foo:18)->hello World