python exception stack trace

Python built-in exception Architecture The class hierarchy for built-in exceptions is: BaseException+-- SystemExit+-- KeyboardInterrupt+-- GeneratorExit+-- Exception+-- StopIteration+-- StandardError| +-- BufferError| +-- ArithmeticError| | +-- FloatingPointError| | +-- OverflowError| | +-- ZeroDivisionError| +-- AssertionError| +-- AttributeError| +-- Environme

Here we need to modify Python's processing flow after the exception occurs Sys.excepthook is the exception handler for the Python system, overrides a custom processor, and starts the PDB after printing the exception information.ImportSYSdefinfo (type, value, TB):#Exception T

First, what is an exceptionAn exception is a signal that an error occurs, and once the program fails, and the program does not handle the error, an exception is thrown and the program's operation terminates.For example:1 Print('1')2 Print('2')3 Print('3')4int'AAAA')5 Print('4')6 Print('5')7 Print('6')8 9 The result is:Ten One Traceback (most recent): A1 -2 -File"C:/users/xu516/pycharmprojects/

You may often encounter a requirement during development that requires the output of Python exception information to the log file. The online approach is not very practical, the following describes a practical, from the Python 2.7 source button. Nonsense does not say directly on the code, the code is not much, the annotation is more. Import sys, traceback

Tag: Money case Exception put trace color must be exception pythonMoney = input ('Enter how much money:') months= Input ('A few more months:')Try: Res=Calc (int (money), int (months))exceptZerodivisionerror as E:#if the code inside the try is wrong, go to the code inside the except .Traceback.print_exc ()#just the details of the output error . Print('the numbe

Object-Oriented---custom exception types1 classmyexception (baseexception):2 def __init__(Self, msg):3Super (MyException, self).__init__()4Self.msg =msg5 6 def __str__(self):7 return ''%self.msg8 9 Ten RaiseMyException ('my own type of exception') One A The result is: - - Traceback (most recent): theFile"C:/users/xu516/pycharmprojects/python Ful

In the process of development, you may often encounter a requirement, you need to export the Python exception information to the log fileOnline methods are not very practical, the following is a practical, from the Python 2.7 source code to buckle out ofNonsense not to say directly on the code, the code is not many, more than the comments1 Importsys, Traceback2 3

In the process of development, you may often encounter a requirement that requires the output of Python's exception information to a log file. Online methods are not very practical, the following is a practical, from the Python 2.7 source code to buckle out. The nonsense does not say directly on the code, the code is not many, the annotation is more than just. Import sys, tracebacktraceback_template = "Tr