qt.py 文件源码

def _pyqt4():
    # Attempt to set sip API v2 (must be done prior to importing PyQt4)
    import sip
    try:
        sip.setapi("QString", 2)
        sip.setapi("QVariant", 2)
        sip.setapi("QDate", 2)
        sip.setapi("QDateTime", 2)
        sip.setapi("QTextStream", 2)
        sip.setapi("QTime", 2)
        sip.setapi("QUrl", 2)
    except AttributeError:
        raise ImportError
        # PyQt4 < v4.6
    except ValueError:
        # API version already set to v1
        raise ImportError

    import PyQt4.Qt

    # Remap
    PyQt4.QtWidgets = PyQt4.QtGui
    PyQt4.QtCore.Signal = PyQt4.QtCore.pyqtSignal
    PyQt4.QtCore.Slot = PyQt4.QtCore.pyqtSlot
    PyQt4.QtCore.Property = PyQt4.QtCore.pyqtProperty
    PyQt4.QtCore.QItemSelection = PyQt4.QtGui.QItemSelection
    PyQt4.QtCore.QItemSelectionModel = PyQt4.QtGui.QItemSelectionModel

    # Add
    PyQt4.__wrapper_version__ = __version__
    PyQt4.__binding__ = "PyQt4"
    PyQt4.__binding_version__ = PyQt4.QtCore.PYQT_VERSION_STR
    PyQt4.__qt_version__ = PyQt4.QtCore.QT_VERSION_STR
    PyQt4.load_ui = pyqt4_load_ui

    return PyQt4