小编Jim*_*ang的帖子

我有一堆模块。下面列出了模块及其导入：

ast.py:
    import enum
    from abc import ABC, abstractmethod
err.py:
    none
lexer.py:
    from token import TokenTag, Token
parser.py:
    from ast import *
    from err import UndeclaredIdentError, SyntaxError
    from token import TokenTag as Tag
    from type import Type
peep.py:
    from lexer import Lexer
    from parser import Parser
token.py:
    import enum
treewalker.py:
    from abc import ABC, abstractmethod
type.py:
    import enum
    from treewalker import TreeWalker

我尝试运行 peep.py，但出现以下错误：

Traceback (most recent call last):
  File "peep.py", line 2, in <module>
    from parser import Parser
ImportError: …