Fix imports in MultiPlotWidget and its example.

Merge remote-tracking branch 'termim/develop' into multiplotwidget-fix

examples/MultiPlotWidget.py

@@ -10,7 +10,7 @@ from pyqtgraph.Qt import QtGui, QtCore
 import pyqtgraph as pg
 from pyqtgraph import MultiPlotWidget
 try:
-    from metaarray import *
+    from pyqtgraph.metaarray import *
 except:
     print("MultiPlot is only used with MetaArray for now (and you do not have the metaarray package)")
     exit()
@@ -22,7 +22,7 @@ pw = MultiPlotWidget()
 mw.setCentralWidget(pw)
 mw.show()
 
-ma = MetaArray(random.random((3, 1000)), info=[{'name': 'Signal', 'cols': [{'name': 'Col1'}, {'name': 'Col2'}, {'name': 'Col3'}]}, {'name': 'Time', 'vals': linspace(0., 1., 1000)}])
+ma = MetaArray(random.random((3, 1000)), info=[{'name': 'Signal', 'cols': [{'name': 'Col1'}, {'name': 'Col2'}, {'name': 'Col3'}]}, {'name': 'Time', 'values': linspace(0., 1., 1000)}])
 pw.plot(ma)
 
 ## Start Qt event loop unless running in interactive mode.

pyqtgraph/graphicsItems/MultiPlotItem.py

@@ -9,7 +9,7 @@ from numpy import ndarray
 from . import GraphicsLayout
 
 try:
-    from metaarray import *
+    from ..metaarray import *
     HAVE_METAARRAY = True
 except:
     #raise