Dynamically Load UI file from QtDesigner

loadUI_example.py

from PySide.QtGui  import * 
from PySide.QtCore import *
from PySide.QtUiTools import QUiLoader

uiFile = "path\to\my\UI\file.ui"


class UiLoader(QUiLoader):
	'''
	Convenience class for dynamically loading QtDesigner '.ui' files,
	circumventing the need to convert them into Python modules via pyside-uic.
	'''
	def __init__(self, baseinstance):
		QUiLoader.__init__(self, baseinstance)
		self.baseinstance = baseinstance

	def createWidget(self, class_name, parent=None, name=''):
		if parent is None and self.baseinstance:
			return self.baseinstance
		else:
			widget = QUiLoader.createWidget(self, class_name, parent, name)
			if self.baseinstance:
				setattr(self.baseinstance, name, widget)
			return widget


class MyWidget(QtGui.QWidget):
	''' '''
	def __init__(self, parent=None):
		''' '''
		QWidget.__init__(self, parent)
		self.loadUi(uiFile, self)
		#self.someWidget.someSignal.connect(self.close)

	def loadUi(self, uifile, baseinstance=None):
		''' Dynamically load the UI file '''
		loader = UiLoader(baseinstance)
		widget = loader.load(uifile)
		QMetaObject.connectSlotsByName(widget)
		return widget


win  = MyWidget()  
win.show()