def _pyqt5():
    """Initialise PyQt5"""

    import PyQt5 as module
    extras = ["uic"]
    try:
        import sip
        extras.append(sip.__name__)
    except ImportError:
        sip = None

    _setup(module, extras)
    if hasattr(Qt, "_sip"):
        Qt.QtCompat.wrapInstance = _wrapinstance
        Qt.QtCompat.getCppPointer = _getcpppointer

    if hasattr(Qt, "_uic"):
        Qt.QtCompat.loadUi = _loadUi

    if hasattr(Qt, "_QtCore"):
        Qt.__binding_version__ = Qt._QtCore.PYQT_VERSION_STR
        Qt.__qt_version__ = Qt._QtCore.QT_VERSION_STR

    if hasattr(Qt, "_QtWidgets"):
        Qt.QtCompat.setSectionResizeMode = \
            Qt._QtWidgets.QHeaderView.setSectionResizeMode

    _reassign_misplaced_members("PyQt5")
    _build_compatibility_members('PyQt5')