Python PyQt4.uic 模块，loadUiType() 实例源码

def get_ui_class(ui_file):
    """Get UI Python class from .ui file.

    :param ui_file: The file of the ui in safe.gui.ui
    :type ui_file: str
    """
    ui_file_path = os.path.abspath(
        os.path.join(
            os.path.dirname(__file__),
            os.pardir,
            'gui',
            'ui',
            ui_file
        )
    )
    return uic.loadUiType(ui_file_path)[0]

def loadUiType(uiFile):
        """
        Pyside "loadUiType" command like PyQt4 has one, so we have to convert
        the ui file to py code in-memory first and then execute it in a
        special frame to retrieve the form_class.

        from stackoverflow: http://stackoverflow.com/a/14195313/3781327

        seems like this might also be a legitimate solution, but I'm not sure
        how to make PyQt4 and pyside look the same...
            http://stackoverflow.com/a/8717832
        """
        import pysideuic
        import xml.etree.ElementTree as xml
        #from io import StringIO

        parsed = xml.parse(uiFile)
        widget_class = parsed.find('widget').get('class')
        form_class = parsed.find('class').text

        with open(uiFile, 'r') as f:
            o = StringIO()
            frame = {}

            pysideuic.compileUi(f, o, indent=0)
            pyc = compile(o.getvalue(), '<string>', 'exec')
            exec(pyc, frame)

            #Fetch the base_class and form class based on their type in the xml from designer
            form_class = frame['Ui_%s'%form_class]
            base_class = eval('QtGui.%s'%widget_class)

        return form_class, base_class

def loadUiType(uiFile):
        """
        Pyside "loadUiType" command like PyQt4 has one, so we have to convert
        the ui file to py code in-memory first and then execute it in a
        special frame to retrieve the form_class.

        from stackoverflow: http://stackoverflow.com/a/14195313/3781327

        seems like this might also be a legitimate solution, but I'm not sure
        how to make PyQt4 and pyside look the same...
            http://stackoverflow.com/a/8717832
        """
        import pysideuic
        import xml.etree.ElementTree as xml
        #from io import StringIO

        parsed = xml.parse(uiFile)
        widget_class = parsed.find('widget').get('class')
        form_class = parsed.find('class').text

        with open(uiFile, 'r') as f:
            o = StringIO()
            frame = {}

            pysideuic.compileUi(f, o, indent=0)
            pyc = compile(o.getvalue(), '<string>', 'exec')
            exec(pyc, frame)

            #Fetch the base_class and form class based on their type in the xml from designer
            form_class = frame['Ui_%s'%form_class]
            base_class = eval('QtGui.%s'%widget_class)

        return form_class, base_class

def load_ui(name):
    if os.path.exists(name):
        uifile = name
    else:
        frame = inspect.stack()[1]
        filename = inspect.getfile(frame[0])
        uifile = os.path.join(os.path.dirname(filename), name)
        if not os.path.exists(uifile):
            uifile = os.path.join(os.path.dirname(filename), "ui", name)

    widget, base = uic.loadUiType(uifile)
    return widget, base