widget_utils.py 文件源码

python
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项目:notebook-molecular-visualization 作者: Autodesk 项目源码 文件源码
def can_use_widgets():
    """ Expanded from from http://stackoverflow.com/a/34092072/1958900
    """
    if 'IPython' not in sys.modules:
        # IPython hasn't been imported, definitely not
        return False
    from IPython import get_ipython

    # check for `kernel` attribute on the IPython instance
    if getattr(get_ipython(), 'kernel', None) is None:
        return False

    try:
        import ipywidgets as ipy
        import traitlets
    except ImportError:
        return False

    if int(ipy.__version__.split('.')[0]) < 6:
        print('WARNING: widgets require ipywidgets 6.0 or later')
        return False

    return True
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