environment/lib/python2.7/site-packages/IPython/frontend/html/notebook/notebookmanager.py
def delete_notebook_id(self, notebook_id):
        """Delete a notebook's id only. This doesn't delete the actual notebook."""
        name = self.mapping[notebook_id]
        del self.mapping[notebook_id]
        del self.rev_mapping[name]
def delete_notebook_id(self, notebook_id):
        name = self.mapping[notebook_id]
        del self.mapping[notebook_id]
        del self.rev_mapping[name]
def delete_notebook_id ( self , notebook_id ) : name = self . mapping [ notebook_id ] del self . mapping [ notebook_id ] del self . rev_mapping [ name ]
Delete a notebook's id only. This doesn't delete the actual notebook.
Delete a notebook s id only . This doesn t delete the actual notebook .