Python traceback.extract_tb函数代码示例

 def read_file(self, path):
     #读取存储目录日志
     if os.path.exists(path):
         try:
             history_dicts = {}
             fp = open(path, 'r')
             #数据读入缓存
             cache = fp.read()
             for line in cache.splitlines():
                 #行解析
                 self.param_check(line, history_dicts)
             fp.close()
             #上报内容
             ret = self.aggresion(history_dicts)
             if ret:
                 #上报成功将文件删除
                 os.remove(path)
         except:
             info = sys.exc_info()
             traceback.extract_tb(info[2])
             self.log.error('history error %s %s %s', info[0], info[1], path)
             return 0
     else:
         self.log.debug('history file is not exit %s', path)
         return 0
     return 1

def table_reader(options, file_info, task_queue, error_queue, exit_event):
    try:
        db = file_info["db"]
        table = file_info["table"]
        primary_key = file_info["info"]["primary_key"]
        conn = r.connect(options["host"], options["port"], auth_key=options["auth_key"])

        if table not in r.db(db).table_list().run(conn):
            r.db(db).table_create(table, primary_key=primary_key).run(conn)

        if file_info["format"] == "json":
            json_reader(task_queue,
                        file_info["file"],
                        db, table,
                        primary_key,
                        options["fields"],
                        exit_event)
        elif file_info["format"] == "csv":
            csv_reader(task_queue,
                       file_info["file"],
                       db, table,
                       primary_key,
                       options,
                       exit_event)
        else:
            raise RuntimeError("unknown file format specified")
    except (r.RqlClientError, r.RqlDriverError, r.RqlRuntimeError) as ex:
        error_queue.put((RuntimeError, RuntimeError(ex.message), traceback.extract_tb(sys.exc_info()[2])))
    except InterruptedError:
        pass # Don't save interrupted errors, they are side-effects
    except:
        ex_type, ex_class, tb = sys.exc_info()
        error_queue.put((ex_type, ex_class, traceback.extract_tb(tb), file_info["file"]))

 def exec_code(self, c):
     try:
         std_streams = sys.stdout, sys.stderr
         sys.stdout = StringIO.StringIO()
         sys.stderr = StringIO.StringIO()
         try:
             exec c in self.locals
         finally:
             text_out = sys.stdout.getvalue()
             text_err = sys.stderr.getvalue()
             sys.stdout, sys.stderr = std_streams
             self.output.print_to_stdout(text_out)
             self.output.print_to_stderr(text_err)
     # Include these lines to actually exit on a sys.exit() call
     # except SystemExit, value:
     #    raise SystemExit, value
     except:
         exc_type, exc_value, exc_traceback = sys.exc_info()
         l = len(traceback.extract_tb(sys.exc_traceback))
         try:
             1 / 0
         except:
             m = len(traceback.extract_tb(sys.exc_traceback))
         type, value, tb = sys.exc_info()
         sys.last_type = exc_type
         sys.last_value = exc_value
         sys.last_traceback = exc_traceback
         tblist = traceback.extract_tb(exc_traceback)
         del tblist[:1]
         list = traceback.format_list(tblist)
         if list:
             list.insert(0, "Traceback (most recent call last):\n")
         list[len(list) :] = traceback.format_exception_only(exc_type, exc_value)
         map(self.output.print_to_stderr, list)
         return

def convert_exc_to_user_error(exc_info, error_info, msg_args=None, nested_exc_info=None,
                              user_error_class=UserError):
    """Create a user error from an exception. exc_info is the exception info
    array returned from sys.exc_info(). The user message, error code, etc
    are taken from error_info.
    The exception type and value are stored in the developer message and the
    stack traceback used to create a context stack. If a nested exception's information
    is provided through nested_exc_info, this is addeded to the end of the context
    list.

    Here is an example of using this function.

    try:
        call_something_that_can_throw_an_exception()
    except UserError:
         # if this call can throw a user error,
         # let it propagage up
        raise
    except:
        exc_info = sys.exc_info()
        raise convert_exc_to_user_error(exc_info, errors[ERR_WSGI_SCRIPT],
                                        msg_args={'script':config_mod_wsgi_file})
    
    """
    (exc_class, exc_val, exc_tb) = exc_info
    exc_name = exc_class.__name__
    if nested_exc_info != None:
        context = traceback.extract_tb(exc_tb) + traceback.extract_tb(nested_exc_info[2])
    else:
        context = traceback.extract_tb(exc_tb)
    return user_error_class(error_info, msg_args,
                            developer_msg="%s: %s" % (exc_name, format_string(exc_val)),
                            context=context)

def export_table(host, port, auth_key, db, table, directory, fields, format, error_queue, progress_info, stream_semaphore, exit_event):
    writer = None

    try:
        conn = r.connect(host, port, auth_key=auth_key)

        table_size = r.db(db).table(table).count().run(conn)
        progress_info[1].value = table_size
        progress_info[0].value = 0
        write_table_metadata(conn, db, table, directory)

        with stream_semaphore:
            task_queue = multiprocessing.queues.SimpleQueue()
            writer = launch_writer(format, directory, db, table, fields, task_queue, error_queue)
            writer.start()

            read_table_into_queue(conn, db, table, task_queue, progress_info, exit_event)
    except (r.RqlError, r.RqlDriverError) as ex:
        error_queue.put((RuntimeError, RuntimeError(ex.message), traceback.extract_tb(sys.exc_info()[2])))
    except:
        ex_type, ex_class, tb = sys.exc_info()
        error_queue.put((ex_type, ex_class, traceback.extract_tb(tb)))
    finally:
        if writer is not None and writer.is_alive():
            task_queue.put(("exit", "event")) # Exit is triggered by sending a message with two objects
            writer.join()
        else:
            error_queue.put((RuntimeError, RuntimeError("writer unexpectedly stopped"),
                             traceback.extract_tb(sys.exc_info()[2])))

	def execute_plugins(self, network, trigger, *arguments):
		for plugin in plugin_handler.all_plugins():
			try:
				if plugin.__class__.__dict__.has_key(trigger):
					# FIXME this is rather ugly, for compatiblity with pynik
					if plugin.__class__.__dict__[trigger].func_code.co_argcount == len(arguments) + 2:
						plugin.__class__.__dict__[trigger](plugin, self, *arguments) # Call without network
					elif plugin.__class__.__dict__[trigger].func_code.co_argcount == len(arguments) + 3:
						plugin.__class__.__dict__[trigger](plugin, self, *arguments, **{'network': network})
					else:
						raise NotImplementedError("Plugin '%s' argument count missmatch, was %s." % (
								plugin, plugin.__class__.__dict__[trigger].func_code.co_argcount))
			except:
				error_handler.output_message("%s %s Plugin '%s' threw exception, exinfo: '%s', traceback: '%s'" % (
						datetime.datetime.now().strftime("[%H:%M:%S]"), network,
						plugin, sys.exc_info(), traceback.extract_tb(sys.exc_info()[2])))

				if trigger != "timer_beat":
					try:
						self.tell(self.settings.admin_network, self.settings.admin_channel,
							  "%s %s Plugin '%s' threw exception, exinfo: '%s', traceback: '%s'" % (
								datetime.datetime.now().strftime("[%H:%M:%S]"), network,
								plugin, sys.exc_info(), traceback.extract_tb(sys.exc_info()[2])[::-1]))
					except:
						error_handler.output_message("%s %s Unable to send exception to admin channel, exinfo: '%s', traceback: '%s'" % (
								datetime.datetime.now().strftime("[%H:%M:%S]"), network,
								sys.exc_info(), traceback.extract_tb(sys.exc_info()[2])))

 def __call__(self, request, methodname):
   handler = self._fmap.get(methodname)
   if handler is None:
     return JSONNotFound("No method " + methodname)
   try:
     data = request.POST.get("data")
     if data:
       try:
         arguments = self._decoder.decode(data)
         # First argument is method name.
         # Allow for keyword arguments as sole argument.
         if len(arguments) == 2 and isinstance(arguments[1], dict):
           args = ()
           kwargs = arguments[1]
         else: # otherwise, use positional arguments.
           args = tuple(arguments[1:])
           kwargs = {}
       except: # error in parameter conversion
         ex, val, tb = sys.exc_info()
         tblist = traceback.extract_tb(tb)
         request.log_error("JSONDispatcher args: %s (%s)\n" % (ex, val))
         return JSONServerError(ex, val, tblist)
     else:
       args = ()
       kwargs = {}
     with GlobalRequest(request):
       rv = handler(*args, **kwargs)
     json = self._encoder.encode(rv)
     return HttpResponse(json, "application/json")
   except: # all exceptions are sent back to client.
     ex, val, tb = sys.exc_info()
     tblist = traceback.extract_tb(tb)
     del tb
     request.log_error("JSONDispatcher: %s (%s)\n" % (ex, val))
     return JSONServerError(ex, val, tblist)

    def process_exception(self,request, exception):
        f = open('exception.log', 'a')
        f.write(str(exception) +  "\n")
        f.close()
        
        #print traceback.print_stack()

        # From interpretter get name that caused exception
        # 
        # Use name to query the database, get newest one, update is_good to False
        #
        # Query for benign and malicious input
        #
        # Pass these two data sets to the GA
        #
        # Handle the results to update filter

        try:
            type, value, tb = sys.exc_info()
            print type
            print value
            print traceback.extract_tb(tb)
        finally:
            del tb
            return HttpResponsePermanentRedirect(request.get_full_path().split("?")[0])

 def fogbugzOnFail(self,logfp):
     print "Creating FogBuz Ticket"
     cfp=Config(self.__fpath)
     attempts=0
     run=True
     while run is True and attempts < 3: 
         try:
             site=FogBugz(cfp.getVar("fogbugz","site","string"))
             try:
                 site.logon(cfp.getVar("fogbugz","user","string"), cfp.getVar("fogbugz","pass","string"))
                 cfp=Config(self.__fpath)
                 with open(logfp,'rb') as fp:
                     print site.new(sTitle="The Parser "+os.path.join(self.__logbase,self.__execute)+" Failed",ixPersonAssignedTo="Andy",Files={"faillog.txt":fp})
                 attempts+=1
                 run=False
             except Exception,e:
                 print str(e)
                 for frame in traceback.extract_tb(sys.exc_info()[2]):
                     print '\n'.join([str(x) for x in frame])
             finally:
                 site.logoff()
         except Exception,e:
             print str(e)
             for frame in traceback.extract_tb(sys.exc_info()[2]):
                 print '\n'.join([str(x) for x in frame])

def test_derived_traceback():
    """Test python exception traceback in class derived from managed base"""
    class DerivedClass(SubClassTest):
        __namespace__ = "Python.Test.traceback"

        def foo(self):
            print (xyzname)
            return None

    import sys,traceback
    ob = DerivedClass()

    # direct call
    try:
        ob.foo()
        assert False
    except:
        e = sys.exc_info()
    assert "xyzname" in str(e[1])
    location = traceback.extract_tb(e[2])[-1]
    assert location[2] == "foo"

    # call through managed code
    try:
        FunctionsTest.test_foo(ob)
        assert False
    except:
        e = sys.exc_info()
    assert "xyzname" in str(e[1])
    location = traceback.extract_tb(e[2])[-1]
    assert location[2] == "foo"

def runPythonFuncWithPickle(infil):
    data = pickleLoad(infil)
    pyfil = data['path']
    method = data['method']
    params =  data['params']
    map =  data['map']
    try:
        _module = loadModule(pyfil)
        _callable = getattr(_module, method)
        if callable(_callable):
            data['result'] =  _callable(*params, **map)
        else:
            data['except'] = "Unknown method: " + method + "() in Python file '" + pyfil + "'"
    # https://docs.python.org/2/library/exceptions.html#exceptions.SyntaxError
    # https://docs.python.org/2/library/traceback.html
    except SyntaxError:
        data['except'] = "Fail to compile Python file '" + pyfil + "'"
    except AttributeError:
        data['except'] = "Unknown method: '" + method + "()' in Python file '" + pyfil + "'"
    except:
        exc_type, exc_value, exc_traceback = sys.exc_info()
        data['except'] = repr(traceback.extract_tb(exc_traceback)[1:]).encode('unicode-escape').decode().replace("\\\\", "\\").replace("\\\\", "\\")
        data['except'] = traceback.extract_tb(exc_traceback)[1:]
    outfil = infil + '.out'
    pickleDump(data, outfil)
    return outfil

def replaceStackTrace(nextHandler, thisFile, type, value, tb):
	chunks = [[384, 0]]
	if len(value.args) == 0:
		resultDict = {}
		resultDict["dictId"] = u"9D6B6AA1-92FC-453E-8B9A-91D0E02A17B1"
		resultDict["stackInfo"] = traceback.extract_tb(tb)
		value.args = value.args +(resultDict, ) 
	else:
		resultDict = value.args[-1]

	if type(resultDict) != type({}):
		resultDict = {}
		resultDict["dictId"] = u"9D6B6AA1-92FC-453E-8B9A-91D0E02A17B1"
		resultDict["stackInfo"] = traceback.extract_tb(tb)
		value.args = value.args +(resultDict, ) 

	if "dictId" not in resultDict or resultDict["dictId"] != u"9D6B6AA1-92FC-453E-8B9A-91D0E02A17B1":
		resultDict = {}
		resultDict["dictId"] = u"9D6B6AA1-92FC-453E-8B9A-91D0E02A17B1"
		resultDict["stackInfo"] = traceback.extract_tb(tb)
		value.args = value.args +(resultDict, ) 

	resultDict['stackInfo'] = revealLiterate("使用noweb对python进行文学编程.nw", thisFile, chunks, resultDict["stackInfo"])
	if '<built-in function excepthook>' == str(nextHandler):
		print 'Unhandled Exception, trace back:'
		for stackInfo in resultDict['stackInfo']:
			print ur' File "' + unicode(stackInfo[0]) + ur'", line ' + unicode(stackInfo[1]) + ur' in ' + unicode(stackInfo[2])
			print ur'   ' + unicode(stackInfo[3])
		value.args = value.args[:-1]
		print re.compile(r"<type '([^']+)'>").match(str(type)).group(1)+":", value
	elif None != nextHandler:
		nextHandler(type, value, tb)

    def __init__(self, *a, **b):
        super(ApplicationException,self).__init__(*a,**b)
        self._stacks = []

        # save current stack
        self._stack_init = traceback.extract_stack()
        self.add_stack(self.__class__.__name__ + ': ' + str(self), self._stack_init)

        # WARNING this is unreliable!  only use if cause passed as argument
        cause_info = sys.exc_info() #if retain_cause else (None,None,None)

        # add stacks and labels for cause
        if 'cause' in b:
            if isinstance(b['cause'],Application):
                self._cause = b['cause']
                cause_label = 'caused by: ' + self._cause.__class__.__name__ + ': ' + str(self._cause)
                # if ApplicationException, get stacks from its list
                if isinstance(self._cause,ApplicationException) and len(self._cause._stacks):
                    first = True
                    for label,stack in self._cause._stacks:
                        if first:
                            self.add_stack(cause_label, stack)
                            first = False
                        else:
                            self.add_stack(label, stack)
                # otherwise if this is current exception in exc_info, use its stack
                elif self._cause==cause_info[1] and cause_info[2]:
                    self._stack_cause = traceback.extract_tb(cause_info[2])
                    self.add_stack(cause_label, self._stack_cause)
            # cause is not an exception? treat as boolean, use exc_info
            elif b['cause']:
                self._cause=cause_info[1]
                if cause_info[2]:
                    self._stack_cause = traceback.extract_tb(cause_info[2])
                    self.add_stack(cause_label, self._stack_cause)

 def update_sql(self, line):
     sqlconpool_sem.acquire()
     #获取相关库的链接
     sqlclient,table = sqlconpool_dict.get("qita", None)
     #上传日表
     sql = "INSERT INTO "+ table+"(BW_DATE, BW_DOMAIN, BW_IP, BW_BANDWIDTH) VALUES(%s,%s,%s,%s)"
     if not sqlclient:
         self.log.error("history work sqlclient is not set %s", table)
         sqlconpool_sem.release()
         return 0
     else:
         try:
             param = line
             #插入多行
             ret = sqlclient.insertMany(sql, param)
             #事务提交
             sqlclient.end('commit')
         except:
             #发生错误， 事务回滚
             info = sys.exc_info()
             traceback.extract_tb(info[2])
             self.log.error("%s %s %s %s", info[0], info[1], sql, str(param))
             sqlconpool_sem.release()
             return 0
     sqlconpool_sem.release()
     return 1

        def decorator(*args, **kwargs):
            if not hasattr(trace, 'local'):
                trace.local = threading.local()
            tl = trace.local

            if not hasattr(tl, 'log_indent'):
                tl.log_indent = 0

            funcname = func.__module__ + "." + func.__name__

            # List all positional arguments
            margs = [str("'%s'" % arg if isinstance(arg, str) else arg) for arg in [("********" if i in redact else arg) for i, arg in enumerate(args)]]

            # List all keyword arguments
            margs.extend(["%s=%s" % (key, str("'%s'" % val if isinstance(val, str) else val)) for key, val in [(key, ("********" if key in redact else val)) for key, val in kwargs.items()]])

            try:
                logger.debug("\t" * tl.log_indent + "Entering %s(%s)" % (funcname, ", ".join(margs)))
                tl.log_indent+=1
                retval = func(*args, **kwargs)
                tl.log_indent-=1
                logger.debug("\t" * tl.log_indent + "Leaving %s = %s" % (funcname, retval))
                return retval
            except Exception as e:
                tl.log_indent -= 1
                file = traceback.extract_tb()[-1][0]
                line = traceback.extract_tb()[-1][1]
                clsfunc = e.__class__.__name__
                logger.error("\t" * tl.log_indent + "Encountered error in %s: %s(%s) [%s:%i]" % (funcname, clsfunc, e.message, file, line))
                raise e, None, exc_info()[2]