namespace.py 文件源码

def _get_ast_name_node(node):
    while True:
        # only accept '*var'
        if isinstance(node, ast.Starred):
            # '*var = value' => 'var'
            node = node.value
        elif isinstance(node, ast.Subscript):
            # 'obj[slice] = value' => 'obj'
            node = node.value
        elif isinstance(node, ast.Attribute):
            # 'obj.attr = value' => 'obj'
            node = node.value
        elif (isinstance(node, ast.Call)
             and isinstance(node.func, ast.Attribute)):
            # 'obj.method().attr = value' => 'obj.method'
            node = node.func
        else:
            return node