import template files using importlib

this lets us support the various bindings w/o having to add binding
specific code.

it breaks PyQt4 support since PyQt4 template files are suffixed as
"_pyqt" rather than "_pyqt4"

examples/ExampleApp.py

@@ -12,16 +12,9 @@ path = os.path.abspath(os.path.dirname(__file__))
 sys.path.insert(0, path)
 app = pg.mkQApp()
 
-if QT_LIB == 'PySide':
+import importlib
-    from exampleLoaderTemplate_pyside import Ui_Form
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide2':
+    f'exampleLoaderTemplate_{QT_LIB.lower()}')
-    from exampleLoaderTemplate_pyside2 import Ui_Form
-elif QT_LIB == 'PySide6':
-    from exampleLoaderTemplate_pyside6 import Ui_Form
-elif QT_LIB == 'PyQt5':
-    from exampleLoaderTemplate_pyqt5 import Ui_Form
-else:
-    from exampleLoaderTemplate_pyqt import Ui_Form
 
 examples = OrderedDict([
     ('Command-line usage', 'CLIexample.py'),
@@ -352,7 +345,7 @@ class PythonHighlighter(QSyntaxHighlighter):
 class ExampleLoader(QtGui.QMainWindow):
     def __init__(self):
         QtGui.QMainWindow.__init__(self)
-        self.ui = Ui_Form()
+        self.ui = ui_template.Ui_Form()
         self.cw = QtGui.QWidget()
         self.setCentralWidget(self.cw)
         self.ui.setupUi(self.cw)

examples/ScatterPlotSpeedTest.py

@@ -20,20 +20,13 @@ from pyqtgraph.ptime import time
 app = QtGui.QApplication([])
 #mw = QtGui.QMainWindow()
 #mw.resize(800,800)
-if QT_LIB == 'PySide':
+import importlib
-    from ScatterPlotSpeedTestTemplate_pyside import Ui_Form
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide2':
+    f'ScatterPlotSpeedTestTemplate_{QT_LIB.lower()}')
-    from ScatterPlotSpeedTestTemplate_pyside2 import Ui_Form
-elif QT_LIB == 'PySide6':
-    from ScatterPlotSpeedTestTemplate_pyside6 import Ui_Form
-elif QT_LIB == 'PyQt5':
-    from ScatterPlotSpeedTestTemplate_pyqt5 import Ui_Form
-else:
-    from ScatterPlotSpeedTestTemplate_pyqt import Ui_Form
 
 win = QtGui.QWidget()
 win.setWindowTitle('pyqtgraph example: ScatterPlotSpeedTest')
-ui = Ui_Form()
+ui = ui_template.Ui_Form()
 ui.setupUi(win)
 win.show()
 

examples/VideoSpeedTest.py

@@ -15,16 +15,8 @@ import numpy as np
 import pyqtgraph as pg
 import pyqtgraph.ptime as ptime
 
-if QT_LIB == 'PySide':
+import importlib
-    import VideoTemplate_pyside as VideoTemplate
+ui_template = importlib.import_module(f'VideoTemplate_{QT_LIB.lower()}')
-elif QT_LIB == 'PySide2':
-    import VideoTemplate_pyside2 as VideoTemplate
-elif QT_LIB == 'PySide6':
-    import VideoTemplate_pyside6 as VideoTemplate
-elif QT_LIB == 'PyQt5':
-    import VideoTemplate_pyqt5 as VideoTemplate
-else:
-    import VideoTemplate_pyqt as VideoTemplate
     
 
 #QtGui.QApplication.setGraphicsSystem('raster')
@@ -32,7 +24,7 @@ app = QtGui.QApplication([])
 
 win = QtGui.QMainWindow()
 win.setWindowTitle('pyqtgraph example: VideoSpeedTest')
-ui = VideoTemplate.Ui_MainWindow()
+ui = ui_template.Ui_MainWindow()
 ui.setupUi(win)
 win.show()
 

pyqtgraph/GraphicsScene/exportDialog.py

@@ -4,16 +4,9 @@ from .. import functions as fn
 from ..graphicsItems.ViewBox import ViewBox
 from ..graphicsItems.PlotItem import PlotItem
 
-if QT_LIB == 'PySide':
+import importlib
-    from . import exportDialogTemplate_pyside as exportDialogTemplate
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide2':
+    f'.exportDialogTemplate_{QT_LIB.lower()}', package=__package__)
-    from . import exportDialogTemplate_pyside2 as exportDialogTemplate
-elif QT_LIB == 'PySide6':
-    from . import exportDialogTemplate_pyside6 as exportDialogTemplate
-elif QT_LIB == 'PyQt5':
-    from . import exportDialogTemplate_pyqt5 as exportDialogTemplate
-else:
-    from . import exportDialogTemplate_pyqt as exportDialogTemplate
 
 
 class ExportDialog(QtGui.QWidget):
@@ -30,7 +23,7 @@ class ExportDialog(QtGui.QWidget):
         self.selectBox.hide()
         self.scene.addItem(self.selectBox)
         
-        self.ui = exportDialogTemplate.Ui_Form()
+        self.ui = ui_template.Ui_Form()
         self.ui.setupUi(self)
         
         self.ui.closeBtn.clicked.connect(self.close)

pyqtgraph/canvas/Canvas.py

@@ -5,16 +5,9 @@ from ..graphicsItems.ROI import ROI
 from ..graphicsItems.ViewBox import ViewBox
 from ..graphicsItems.GridItem import GridItem
 
-if QT_LIB == 'PySide':
+import importlib
-    from .CanvasTemplate_pyside import *
+ui_template = importlib.import_module(
-elif QT_LIB == 'PyQt4':
+    f'.CanvasTemplate_{QT_LIB.lower()}', package=__package__)
-    from .CanvasTemplate_pyqt import *
-elif QT_LIB == 'PySide2':
-    from .CanvasTemplate_pyside2 import *
-elif QT_LIB == 'PySide6':
-    from .CanvasTemplate_pyside6 import *
-elif QT_LIB == 'PyQt5':
-    from .CanvasTemplate_pyqt5 import *
     
 import numpy as np
 from .. import debug
@@ -32,7 +25,7 @@ class Canvas(QtGui.QWidget):
     
     def __init__(self, parent=None, allowTransforms=True, hideCtrl=False, name=None):
         QtGui.QWidget.__init__(self, parent)
-        self.ui = Ui_Form()
+        self.ui = ui_template.Ui_Form()
         self.ui.setupUi(self)
         self.view = ViewBox()
         self.ui.view.setCentralItem(self.view)

pyqtgraph/canvas/CanvasItem.py

@@ -3,16 +3,9 @@ import numpy as np
 from ..Qt import QtGui, QtCore, QtSvg, QT_LIB
 from ..graphicsItems.ROI import ROI
 from .. import SRTTransform, ItemGroup
-if QT_LIB == 'PySide':
+import importlib
-    from . import TransformGuiTemplate_pyside as TransformGuiTemplate
+ui_template = importlib.import_module(
-elif QT_LIB == 'PyQt4':
+    f'.TransformGuiTemplate_{QT_LIB.lower()}', package=__package__)
-    from . import TransformGuiTemplate_pyqt as TransformGuiTemplate
-elif QT_LIB == 'PySide2':
-    from . import TransformGuiTemplate_pyside2 as TransformGuiTemplate
-elif QT_LIB == 'PySide6':
-    from . import TransformGuiTemplate_pyside6 as TransformGuiTemplate
-elif QT_LIB == 'PyQt5':
-    from . import TransformGuiTemplate_pyqt5 as TransformGuiTemplate
 
 from .. import debug
 
@@ -80,7 +73,7 @@ class CanvasItem(QtCore.QObject):
         self.pasteBtn = QtGui.QPushButton('Paste')
         
         self.transformWidget = QtGui.QWidget()
-        self.transformGui = TransformGuiTemplate.Ui_Form()
+        self.transformGui = ui_template.Ui_Form()
         self.transformGui.setupUi(self.transformWidget)
         self.layout.addWidget(self.transformWidget, 3, 0, 1, 2)
         self.transformGui.mirrorImageBtn.clicked.connect(self.mirrorY)

pyqtgraph/console/Console.py

@@ -7,16 +7,9 @@ from ..python2_3 import basestring
 from .. import exceptionHandling as exceptionHandling
 from .. import getConfigOption
 from ..functions import SignalBlock
-if QT_LIB == 'PySide':
+import importlib
-    from . import template_pyside as template
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide2':
+    f'.template_{QT_LIB.lower()}', package=__package__)
-    from . import template_pyside2 as template
-elif QT_LIB == 'PySide6':
-    from . import template_pyside6 as template
-elif QT_LIB == 'PyQt5':
-    from . import template_pyqt5 as template
-else:
-    from . import template_pyqt as template
 
 
 class ConsoleWidget(QtGui.QWidget):
@@ -62,7 +55,7 @@ class ConsoleWidget(QtGui.QWidget):
         self.inCmd = False
         self.frames = []  # stack frames to access when an item in the stack list is selected
         
-        self.ui = template.Ui_Form()
+        self.ui = ui_template.Ui_Form()
         self.ui.setupUi(self)
         self.output = self.ui.output
         self.input = self.ui.input

pyqtgraph/flowchart/Flowchart.py

@@ -5,22 +5,9 @@ from ..pgcollections import OrderedDict
 from ..widgets.TreeWidget import *
 from .. import FileDialog, DataTreeWidget
 
-## pyside and pyqt use incompatible ui files.
+import importlib
-if QT_LIB == 'PySide':
+FlowchartCtrlTemplate = importlib.import_module(
-    from . import FlowchartTemplate_pyside as FlowchartTemplate
+    f'.FlowchartCtrlTemplate_{QT_LIB.lower()}', package=__package__)
-    from . import FlowchartCtrlTemplate_pyside as FlowchartCtrlTemplate
-elif QT_LIB == 'PySide2':
-    from . import FlowchartTemplate_pyside2 as FlowchartTemplate
-    from . import FlowchartCtrlTemplate_pyside2 as FlowchartCtrlTemplate
-elif QT_LIB == 'PySide6':
-    from . import FlowchartTemplate_pyside6 as FlowchartTemplate
-    from . import FlowchartCtrlTemplate_pyside6 as FlowchartCtrlTemplate
-elif QT_LIB == 'PyQt5':
-    from . import FlowchartTemplate_pyqt5 as FlowchartTemplate
-    from . import FlowchartCtrlTemplate_pyqt5 as FlowchartCtrlTemplate
-else:
-    from . import FlowchartTemplate_pyqt as FlowchartTemplate
-    from . import FlowchartCtrlTemplate_pyqt as FlowchartCtrlTemplate
     
 from .Terminal import Terminal
 from numpy import ndarray

pyqtgraph/graphicsItems/PlotItem/PlotItem.py

@@ -19,16 +19,9 @@ from .. InfiniteLine import InfiniteLine
 from ...WidgetGroup import WidgetGroup
 from ...python2_3 import basestring
 
-if QT_LIB == 'PyQt4':
+import importlib
-    from .plotConfigTemplate_pyqt import *
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide':
+    f'.plotConfigTemplate_{QT_LIB.lower()}', package=__package__)
-    from .plotConfigTemplate_pyside import *
-elif QT_LIB == 'PyQt5':
-    from .plotConfigTemplate_pyqt5 import *
-elif QT_LIB == 'PySide2':
-    from .plotConfigTemplate_pyside2 import *
-elif QT_LIB == 'PySide6':
-    from .plotConfigTemplate_pyside6 import *
 
 __all__ = ['PlotItem']
 
@@ -191,7 +184,7 @@ class PlotItem(GraphicsWidget):
         ### Set up context menu
         
         w = QtGui.QWidget()
-        self.ctrl = c = Ui_Form()
+        self.ctrl = c = ui_template.Ui_Form()
         c.setupUi(w)
         dv = QtGui.QDoubleValidator(self)
         

pyqtgraph/graphicsItems/ViewBox/ViewBoxMenu.py

@@ -3,16 +3,9 @@ from ...Qt import QtCore, QtGui, QT_LIB
 from ...python2_3 import asUnicode
 from ...WidgetGroup import WidgetGroup
 
-if QT_LIB == 'PyQt4':
+import importlib
-    from .axisCtrlTemplate_pyqt import Ui_Form as AxisCtrlTemplate
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide':
+    f'.axisCtrlTemplate_{QT_LIB.lower()}', package=__package__)
-    from .axisCtrlTemplate_pyside import Ui_Form as AxisCtrlTemplate
-elif QT_LIB == 'PyQt5':
-    from .axisCtrlTemplate_pyqt5 import Ui_Form as AxisCtrlTemplate
-elif QT_LIB == 'PySide2':
-    from .axisCtrlTemplate_pyside2 import Ui_Form as AxisCtrlTemplate
-elif QT_LIB == 'PySide6':
-    from .axisCtrlTemplate_pyside6 import Ui_Form as AxisCtrlTemplate
 
 import weakref 
 
@@ -37,7 +30,7 @@ class ViewBoxMenu(QtGui.QMenu):
             m = QtGui.QMenu()
             m.setTitle("%s Axis" % axis)
             w = QtGui.QWidget()
-            ui = AxisCtrlTemplate()
+            ui = ui_template.Ui_Form()
             ui.setupUi(w)
             a = QtGui.QWidgetAction(self)
             a.setDefaultWidget(w)

pyqtgraph/imageview/ImageView.py

@@ -16,16 +16,9 @@ import os, sys
 import numpy as np
 
 from ..Qt import QtCore, QtGui, QT_LIB
-if QT_LIB == 'PySide':
+import importlib
-    from .ImageViewTemplate_pyside import *
+ui_template = importlib.import_module(
-elif QT_LIB == 'PySide2':
+    f'.ImageViewTemplate_{QT_LIB.lower()}', package=__package__)
-    from .ImageViewTemplate_pyside2 import *
-elif QT_LIB == 'PySide6':
-    from .ImageViewTemplate_pyside6 import *
-elif QT_LIB == 'PyQt5':
-    from .ImageViewTemplate_pyqt5 import *
-else:
-    from .ImageViewTemplate_pyqt import *
     
 from ..graphicsItems.ImageItem import *
 from ..graphicsItems.ROI import *
@@ -128,7 +121,7 @@ class ImageView(QtGui.QWidget):
         self.image = None
         self.axes = {}
         self.imageDisp = None
-        self.ui = Ui_Form()
+        self.ui = ui_template.Ui_Form()
         self.ui.setupUi(self)
         self.scene = self.ui.graphicsView.scene()
         self.ui.histogram.setLevelMode(levelMode)