docfields.py 文件源码

def _is_single_paragraph(node):
    """True if the node only contains one paragraph (and system messages)."""
    if len(node) == 0:
        return False
    elif len(node) > 1:
        for subnode in node[1:]:
            if not isinstance(subnode, nodes.system_message):
                return False
    if isinstance(node[0], nodes.paragraph):
        return True
    return False