def createGroup(self, group_name, **attributes):
""" Creates a new group in the parent and returns a pointer to
it. Raises IOError exception if the group already exists.
"""
attrs = safedict(attributes)
if 'created' not in attrs:
attrs['created'] = self._timestamp_()
name, parent = self._pathToNameAndParent(self._hdf5_file_, group_name)
if name in parent.keys():
errmsg = "'%s' group already exists in current data file."
raise IOError, errmsg % group_name
group = self._createGroup_(parent, name, **attrs)
self._registerGroupName(group)
return group
def _getObjectAttributes_(self, _object):
""" Returns a dictionary of attr_name/attr_value pairs for all
setable attributes of the object.
"""
return safedict(dict(_object.attrs), safe_values=True)
def _getDatasetAttributes_(self, parent, dataset_name):
""" Returns a dictionary containing all attributes of the dataset.
"""
dataset = self._getDataset_(parent, dataset_name)
return safedict(dict(dataset.attrs), safe_values=True)
