Python traceback.print_stack() Examples

def delete_db_session(postfix="", flask_sess_if_possible=True):
	if flags.IS_FLASK and flask_sess_if_possible:
		# No need to do anything with flask sess
		return

	cpid = multiprocessing.current_process().name
	ctid = threading.current_thread().name
	csid = "{}-{}-{}".format(cpid, ctid, postfix)


	# print("Releasing session for thread: %s" % csid)
	# print(traceback.print_stack())
	# print("==========================")

	if csid in SESSIONS:
		with SESSION_LOCK:
			# check if the session was created while
			# we were waiting for the lock
			if not csid in SESSIONS:
				return
			SESSIONS[csid][1].close()
			del SESSIONS[csid]
			# print("Deleted session for id: ", csid) 

def main():
    CONFIG = lib.get_config()
    LOGGER = lib.get_logger(PROCESS)
    LOGGER.warn("=== Starting {}".format(PROCESS))
    # Connect to DB
    database = lib.get_db()
    database.db.initializeSession()

    pp = pprint.PrettyPrinter(indent=4)

    # Fetch and print pool block reward estimates for latest N pool blocks
    try:
        pool_blocks = Pool_blocks.get_latest(NUM_BLOCKS)
        pool_blocks_h = [blk.height for blk in pool_blocks]
        LOGGER.warn("Will report estimates for pool blocks: {}".format(pool_blocks_h))

        # Print Estimate
        for height in pool_blocks_h:
            pp.pprint("Eestimate for block: {}".format(height))
            payout_map = pool.get_block_payout_map_estimate(height, LOGGER)
            pp.pprint(payout_map)
    except Exception as e:  # AssertionError as e:
        LOGGER.error("Something went wrong: {} - {}".format(e, traceback.print_stack()))
    
        LOGGER.warn("=== Completed {}".format(PROCESS)) 

def _error_handler(display, event):
    # By default, all errors are silently ignored: this has a better chance
    # of working than the default behaviour of quitting ;-)
    #
    # We've actually never seen an error that was our fault; they're always
    # driver bugs (and so the reports are useless).  Nevertheless, set
    # environment variable PYGLET_DEBUG_X11 to 1 to get dumps of the error
    # and a traceback (execution will continue).
    if pyglet.options['debug_x11']:
        event = event.contents
        buf = c_buffer(1024)
        xlib.XGetErrorText(display, event.error_code, buf, len(buf))
        print 'X11 error:', buf.value
        print '   serial:', event.serial
        print '  request:', event.request_code
        print '    minor:', event.minor_code
        print ' resource:', event.resourceid

        import traceback
        print 'Python stack trace (innermost last):'
        traceback.print_stack()
    return 0 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def _error_handler(display, event):
    # By default, all errors are silently ignored: this has a better chance
    # of working than the default behaviour of quitting ;-)
    #
    # We've actually never seen an error that was our fault; they're always
    # driver bugs (and so the reports are useless).  Nevertheless, set
    # environment variable PYGLET_DEBUG_X11 to 1 to get dumps of the error
    # and a traceback (execution will continue).
    if pyglet.options['debug_x11']:
        event = event.contents
        buf = c_buffer(1024)
        xlib.XGetErrorText(display, event.error_code, buf, len(buf))
        print 'X11 error:', buf.value
        print '   serial:', event.serial
        print '  request:', event.request_code
        print '    minor:', event.minor_code
        print ' resource:', event.resourceid

        import traceback
        print 'Python stack trace (innermost last):'
        traceback.print_stack()
    return 0 

def _error_handler(display, event):
    # By default, all errors are silently ignored: this has a better chance
    # of working than the default behaviour of quitting ;-)
    #
    # We've actually never seen an error that was our fault; they're always
    # driver bugs (and so the reports are useless).  Nevertheless, set
    # environment variable PYGLET_DEBUG_X11 to 1 to get dumps of the error
    # and a traceback (execution will continue).
    if pyglet.options['debug_x11']:
        event = event.contents
        buf = c_buffer(1024)
        xlib.XGetErrorText(display, event.error_code, buf, len(buf))
        print 'X11 error:', buf.value
        print '   serial:', event.serial
        print '  request:', event.request_code
        print '    minor:', event.minor_code
        print ' resource:', event.resourceid

        import traceback
        print 'Python stack trace (innermost last):'
        traceback.print_stack()
    return 0 

def formatException(self, ei):
        """
        Format and return the specified exception information as a string.

        This default implementation just uses
        traceback.print_exception()
        """
        sio = io.StringIO()
        tb = ei[2]
        # See issues #9427, #1553375. Commented out for now.
        #if getattr(self, 'fullstack', False):
        #    traceback.print_stack(tb.tb_frame.f_back, file=sio)
        traceback.print_exception(ei[0], ei[1], tb, None, sio)
        s = sio.getvalue()
        sio.close()
        if s[-1:] == "\n":
            s = s[:-1]
        return s 

def scatter_graph(self):
        """
        Show agent locations.
        """
        if self.has_disp():
            try:
                data = self.plot_data()
                scatter_plot = disp.ScatterPlot(
                    self.plot_title, data,
                    int(self.width), int(self.height),
                    anim=True, data_func=self.plot_data,
                    is_headless=self.headless(),
                    attrs=self.attrs)
                scatter_plot.show()
                return scatter_plot
            except ValueError as e:  # Exception as e:
                self.user.tell("Error when drawing scatter plot: " + str(e))
                traceback.print_stack()
        else:
            return None 

def make_direct_offset(offset, blk, pc, access=None):
    # if offset < 100000:
    #     print(offset)
    #     traceback.print_stack(file=sys.stdout)
    function = blk.function
    binary = function.binary

    if offset in binary.direct_offsets:
        direct_offset = binary.direct_offsets[offset]
    else:
        direct_offset = DirectOffset(binary=binary, offset=offset, access=access)
        binary.direct_offsets[offset] = direct_offset

    function.direct_offsets.add(offset)

    return direct_offset 

def exit_and_msg(msg):
    traceback.print_stack()

    exit_msg = "Service Stop by: " + msg
    logging.exception(exit_msg)

    # To make sure of terminating process exactly
    os.killpg(0, signal.SIGKILL)
    time.sleep(5)

    os.kill(os.getpid(), signal.SIGKILL)
    time.sleep(5)

    os._exit(-1)
    time.sleep(5)

    sys.exit(-1) 

def go(self):
        if self.ed.my_ident != get_ident():
            print(datetime.now(), 'EventDispatcher2: Timer.go() from wrong thread, expect Bad Stuff[tm] to happen')
            print('-' * 70)
            traceback.print_stack(file = sys.stdout)
            print('-' * 70)
            sys.stdout.flush()
        if not self.abs_time:
            if self.randomize_runs != None:
                ival = self.randomize_runs(self.ival)
            else:
                ival = self.ival
            self.etime = self.itime.getOffsetCopy(ival)
        else:
            self.etime = self.ival
            self.ival = None
            self.nticks = 1
        heappush(self.ed.tlisteners, self)
        return 

def on_timeout():
    logger.debug("cli timeout ")
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()

    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True
    # Stopping agents can be rather long, we need a big timeout !
    logger.debug("stop agent on cli timeout ")
    orchestrator.stop_agents(20)
    logger.debug("stop orchestrator on cli timeout ")
    orchestrator.stop()
    _results("TIMEOUT")
    # sys.exit(0)
    os._exit(2) 

def on_timeout():
    logger.debug("cli timeout ")
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()

    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True

    orchestrator.stop_agents(20)
    orchestrator.stop()
    _results("TIMEOUT")
    sys.exit(0) 

def handleClientMessage_(self, msg):
        if isinstance(msg, CumulusNative.ComputationResult):
            self.onComputationResult(msg.computation, msg.deserializedResult(self.vdm), msg.statistics)

        elif isinstance(msg, tuple):
            self.onCheckpointStatus(msg[0], msg[1])

        elif isinstance(msg, CumulusNative.VectorLoadedResponse):
            if not msg.loadSuccessful:
                traceback.print_stack()
                logging.info("MN>> Failure in handleClientMessage_: %s", traceback.format_exc())
                logging.critical("Page Load failed. This is not handled correctly yet. %s", msg)

            self.onCacheLoad(msg.vdid)
        elif isinstance(msg, CumulusNative.GlobalUserFacingLogMessage):
            self.onNewGlobalUserFacingLogMessage(msg)
        elif isinstance(msg, CumulusNative.ExternalIoTaskCompleted):
            self.onExternalIoTaskCompleted(msg) 

def emit(self, record):
		"""
		Emit a record.

		If the stream was not opened because 'delay' was specified in the
		constructor, open it before calling the superclass's emit.
		"""
		failures = 0
		while failures < 3:
			try:
				self.stream_emit(record, record.name)
				break
			except:
				failures += 1
		else:
			traceback.print_stack()
			print("Error writing to file?")


		self.close() 

def findCaller(self, stack_info=False):
        frame = sys._getframe(2)
        f_to_skip = {
            func for func in dir(Logger) if callable(getattr(Logger, func))
        }.union({func for func in dir(QKCLogger) if callable(getattr(QKCLogger, func))})

        while frame:
            code = frame.f_code
            if _LOGGING_FILE_PREFIX not in code.co_filename and (
                "utils.py" not in code.co_filename or code.co_name not in f_to_skip
            ):
                if not stack_info:
                    return (code.co_filename, frame.f_lineno, code.co_name, "")
                else:
                    sinfo = None
                    if stack_info:
                        out = io.StringIO()
                        out.write(u"Stack (most recent call last):\n")
                        traceback.print_stack(frame, file=out)
                        sinfo = out.getvalue().rstrip(u"\n")
                    return (code.co_filename, frame.f_lineno, code.co_name, sinfo)
            frame = frame.f_back 

def lock(self, id=None):
        c = 0
        waitTime = 5000  # in ms
        while True:
            if self.tryLock(waitTime, id):
                break
            c += 1
            if self.debug:
                self.l.lock()
                try:
                    print("Waiting for mutex lock (%0.1f sec). Traceback follows:" 
                          % (c*waitTime/1000.))
                    traceback.print_stack()
                    if len(self.tb) > 0:
                        print("Mutex is currently locked from:\n")
                        print(self.tb[-1])
                    else:
                        print("Mutex is currently locked from [???]")
                finally:
                    self.l.unlock()
        #print 'lock', self, len(self.tb) 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def on_timeout():
    global result, output_file
    global start_t
    duration = time.time() - start_t

    print("TIMEOUT when distributing")
    logger.info("cli timeout when distributing")
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])

    result["status"] =  "TIMEOUT"
    result["inputs"]["duration"] = duration

    if output_file is not None:
        with open(output_file, encoding="utf-8", mode="w") as fo:
            fo.write(yaml.dump(result))
    print(yaml.dump(result))

    #os._exit(0)
    sys.exit(0) 

def on_timeout():
    if orchestrator is None:
        return
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()
    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True

    # Stopping agents can be rather long, we need a big timeout !
    orchestrator.stop_agents(20)
    orchestrator.stop()
    _results("TIMEOUT")
    sys.exit(0) 

def handle_error(self, wrapper, exception, traceback_):
        print >> sys.stderr
        print >> sys.stderr, "---- location:"
        traceback.print_stack()
        print >> sys.stderr, "---- error:"
        traceback.print_tb(traceback_)
        try:
            stack = wrapper.stack_where_defined
        except AttributeError:
            print >> sys.stderr, "??:??: %s / %r" % (wrapper, exception)
        else:
            stack = list(stack)
            stack.reverse()
            for (filename, line_number, function_name, text) in stack:
                file_dir = os.path.dirname(os.path.abspath(filename))
                if file_dir.startswith(this_script_dir):
                    print >> sys.stderr, "%s:%i: %r" % (os.path.join("..", "bindings", "python", os.path.basename(filename)),
                                                        line_number, exception)
                    break
        return True 

def indirect_offset_add_info(self, function, base_pointer, offset, die, low_pc, high_pc, ttype):
        key = (base_pointer, offset)
        # print(key)
        # traceback.print_stack(file=sys.stdout)
        if key in function.indirect_offsets:
            for indirect_offset in function.indirect_offsets[key].values():
                if low_pc is None and high_pc is None:
                    indirect_offset.train_info(die, ttype)
                else:
                    for pc in indirect_offset.pcs:
                        if pc >= low_pc and pc < high_pc:
                            indirect_offset.train_info(die, ttype)
                            break 

def __call__(self, *args, **kw):
        import traceback
        log.msg('instance method %s.%s' % (reflect.qual(self.my_class), self.name))
        log.msg('being called with %r %r' % (args, kw))
        traceback.print_stack(file=log.logfile)
        assert 0 

def format_stack(self, stack_info):
        """
        This method is provided as an extension point for specialized
        formatting of stack information.

        The input data is a string as returned from a call to
        :func:`traceback.print_stack`, but with the last trailing newline
        removed.

        The base implementation just returns the value passed in.
        """
        return stack_info 

def breakLoop(self):
        self.endloop = True
        #print('breakLoop')
        #import traceback
        #import sys
        #traceback.print_stack(file = sys.stdout) 

def check_for_nan(self, loss):
        def check(x, desc):
            result = torch.any(torch.isnan(x)) or torch.any(torch.isinf(x))
            if result:
                traceback.print_stack(file=sys.stdout)
                print(f"NaN/Inf detected in {desc}")
                pdb.set_trace()
            return result

        check(loss.data, "loss")
        # Check all model parameters, and gradients
        for nm, p in self.model.named_parameters():
            check(p.data, nm)
            if p.grad is not None:
                check(p.grad.data, nm + ".grad") 

def warn_with_traceback(message, category, filename, lineno, file=None, line=None):
    """Get full tracebacks when warning is raised by setting

    warnings.showwarning = warn_with_traceback

    See also
    --------
    http://stackoverflow.com/questions/22373927/get-traceback-of-warnings
    """
    import traceback

    traceback.print_stack()
    log = file if hasattr(file, 'write') else sys.stderr
    settings.write(warnings.formatwarning(message, category, filename, lineno, line))