fix imports

artiq/gui/schedule.py

@@ -6,7 +6,8 @@ from quamash import QtGui, QtCore
 from pyqtgraph import dockarea
 
 from artiq.protocols.sync_struct import Subscriber
-from artiq.gui.tools import elide, DictSyncModel
+from artiq.gui.tools import DictSyncModel
+from artiq.tools import elide
 
 
 class _ScheduleModel(DictSyncModel):

artiq/tools.py

@@ -8,6 +8,8 @@ import time
 import collections
 import os.path
 
+import numpy as np
+
 from artiq.language.environment import is_experiment
 from artiq.protocols import pyon