exceptionHandling.py 文件源码

def __call__(self, *args):
        ## Start by extending recursion depth just a bit. 
        ## If the error we are catching is due to recursion, we don't want to generate another one here.
        recursionLimit = sys.getrecursionlimit()
        try:
            sys.setrecursionlimit(recursionLimit+100)


            ## call original exception handler first (prints exception)
            global original_excepthook, callbacks, clear_tracebacks
            try:
                print("===== %s =====" % str(time.strftime("%Y.%m.%d %H:%m:%S", time.localtime(time.time()))))
            except Exception:
                sys.stderr.write("Warning: stdout is broken! Falling back to stderr.\n")
                sys.stdout = sys.stderr

            ret = original_excepthook(*args)

            for cb in callbacks:
                try:
                    cb(*args)
                except Exception:
                    print("   --------------------------------------------------------------")
                    print("      Error occurred during exception callback %s" % str(cb))
                    print("   --------------------------------------------------------------")
                    traceback.print_exception(*sys.exc_info())


            ## Clear long-term storage of last traceback to prevent memory-hogging.
            ## (If an exception occurs while a lot of data is present on the stack, 
            ## such as when loading large files, the data would ordinarily be kept
            ## until the next exception occurs. We would rather release this memory 
            ## as soon as possible.)
            if clear_tracebacks is True:
                sys.last_traceback = None

        finally:
            sys.setrecursionlimit(recursionLimit)