def print_children(data_file, group='<STR_LIT:/>'):
base = data_file.get_node(group)<EOL>print ('<STR_LIT>' % base)<EOL>for node in base._f_walk_groups():<EOL><INDENT>if node is not base:<EOL><INDENT>print ('<STR_LIT>' % node)<EOL><DEDENT><DEDENT>print ('<STR_LIT>' % group)<EOL>for node in base._v_leaves.itervalues():<EOL><INDENT>info = node.shape<EOL>if len(info) == <NUM_LIT:0>:<EOL><INDENT>info = node.read()<EOL><DEDENT>print ('<STR_LIT>' % (node.name, info))<EOL>if len(node.title) > <NUM_LIT:0>:<EOL><INDENT>print ('<STR_LIT>' % node.title)<EOL><DEDENT><DEDENT>
Print all the sub-groups in `group` and leaf-nodes children of `group`.

    Parameters:
        data_file (pytables HDF5 file object): the data file to print
        group (string): path name of the group to be printed.
            Default: '/', the root node.