mGear_pyqt.py 文件源码

def qt_import(shi=False, cui=False):
    """
    import pyside/pyQt

    Returns:
        multi: QtGui, QtCore, QtWidgets, wrapInstance

    """
    lookup = ["PySide2", "PySide", "PyQt4"]

    preferredBinding = os.environ.get("MGEAR_PYTHON_QT_BINDING", None)
    if preferredBinding is not None and preferredBinding in lookup:
        lookup.remove(preferredBinding)
        lookup.insert(0, preferredBinding)

    for binding in lookup:
        try:
            return _qt_import(binding, shi, cui)
        except Exception:
            pass

    raise _qt_import("ThisBindingSurelyDoesNotExist", False, False)