diff --git a/pyqtgraph/graphicsItems/PlotItem/PlotItem.py b/pyqtgraph/graphicsItems/PlotItem/PlotItem.py
index 318351f4..a2affcf7 100644
--- a/pyqtgraph/graphicsItems/PlotItem/PlotItem.py
+++ b/pyqtgraph/graphicsItems/PlotItem/PlotItem.py
@@ -1,38 +1,33 @@
 # -*- coding: utf-8 -*-
-import sys
+import importlib
+import os
 import warnings
 import weakref
+
 import numpy as np
-import os
-from ...Qt import QtGui, QtCore, QT_LIB
-from ... import icons
+
+from ..AxisItem import AxisItem
+from ..ButtonItem import ButtonItem
+from ..GraphicsWidget import GraphicsWidget
+from ..InfiniteLine import InfiniteLine
+from ..LabelItem import LabelItem
+from ..LegendItem import LegendItem
+from ..PlotDataItem import PlotDataItem
+from ..ViewBox import ViewBox
 from ... import functions as fn
-from ...widgets.FileDialog import FileDialog
-from .. PlotDataItem import PlotDataItem
-from .. ViewBox import ViewBox
-from .. AxisItem import AxisItem
-from .. LabelItem import LabelItem
-from .. LegendItem import LegendItem
-from .. GraphicsWidget import GraphicsWidget
-from .. ButtonItem import ButtonItem
-from .. InfiniteLine import InfiniteLine
+from ... import icons, PlotCurveItem, ScatterPlotItem
+from ...Qt import QtGui, QtCore, QT_LIB
 from ...WidgetGroup import WidgetGroup
 from ...python2_3 import basestring
+from ...widgets.FileDialog import FileDialog
 
 translate = QtCore.QCoreApplication.translate
 
-import importlib
 ui_template = importlib.import_module(
     f'.plotConfigTemplate_{QT_LIB.lower()}', package=__package__)
 
 __all__ = ['PlotItem']
 
-try:
-    from metaarray import *
-    HAVE_METAARRAY = True
-except:
-    HAVE_METAARRAY = False
-
 
 class PlotItem(GraphicsWidget):
     """GraphicsWidget implementing a standard 2D plotting area with axes.