environment/lib/python2.7/site-packages/IPython/nbformat/v3/convert.py
def convert_to_this_nbformat(nb, orig_version=2, orig_minor=0):
    """Convert a notebook to the v3 format.

    Parameters
    ----------
    nb : NotebookNode
        The Python representation of the notebook to convert.
    orig_version : int
        The original version of the notebook to convert.
    orig_minor : int
        The original minor version of the notebook to convert (only relevant for v >= 3).
    """
    if orig_version == 1:
        nb = v2.convert_to_this_nbformat(nb)
        orig_version = 2
    if orig_version == 2:
        # Mark the original nbformat so consumers know it has been converted.
        nb.nbformat = nbformat
        nb.nbformat_minor = nbformat_minor
        
        nb.orig_nbformat = 2
        return nb
    elif orig_version == 3:
        if orig_minor != nbformat_minor:
            nb.orig_nbformat_minor = orig_minor
        nb.nbformat_minor = nbformat_minor
        return nb
    else:
        raise ValueError('Cannot convert a notebook from v%s to v3' % orig_version)
def convert_to_this_nbformat(nb, orig_version=2, orig_minor=0):
    if orig_version == 1:
        nb = v2.convert_to_this_nbformat(nb)
        orig_version = 2
    if orig_version == 2:
        # Mark the original nbformat so consumers know it has been converted.
        nb.nbformat = nbformat
        nb.nbformat_minor = nbformat_minor
        
        nb.orig_nbformat = 2
        return nb
    elif orig_version == 3:
        if orig_minor != nbformat_minor:
            nb.orig_nbformat_minor = orig_minor
        nb.nbformat_minor = nbformat_minor
        return nb
    else:
        raise ValueError('Cannot convert a notebook from v%s to v3' % orig_version)
def convert_to_this_nbformat ( nb , orig_version = 2 , orig_minor = 0 ) : if orig_version == 1 : nb = v2 . convert_to_this_nbformat ( nb ) orig_version = 2 if orig_version == 2 : # Mark the original nbformat so consumers know it has been converted. nb . nbformat = nbformat nb . nbformat_minor = nbformat_minor nb . orig_nbformat = 2 return nb elif orig_version == 3 : if orig_minor != nbformat_minor : nb . orig_nbformat_minor = orig_minor nb . nbformat_minor = nbformat_minor return nb else : raise ValueError ( 'Cannot convert a notebook from v%s to v3' % orig_version )
Convert a notebook to the v3 format.

    Parameters
    ----------
    nb : NotebookNode
        The Python representation of the notebook to convert.
    orig_version : int
        The original version of the notebook to convert.
    orig_minor : int
        The original minor version of the notebook to convert (only relevant for v >= 3).
Convert a notebook to the v3 format .