python - 如何修复 Python ValueError :bad marshal data?

Question

在 Ubuntu 中运行 flexget Python 脚本，我得到一个错误:

$ flexget series forget "Orange is the new black" s03e01
Traceback (most recent call last):
File "/usr/local/bin/flexget", line 7, in <module>
from flexget import main
File "/usr/local/lib/python2.7/dist-packages/flexget/__init__.py", line 11, in <module>
from flexget.manager import Manager
File "/usr/local/lib/python2.7/dist-packages/flexget/manager.py", line 21, in <module>
from sqlalchemy.ext.declarative import declarative_base
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/ext/declarative/__init__.py", line 8, in <module>
from .api import declarative_base, synonym_for, comparable_using, \
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/ext/declarative/api.py", line 11, in <module>
from ...orm import synonym as _orm_synonym, \
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/__init__.py", line 17, in <module>
from .mapper import (
File "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/mapper.py", line 27, in <module>
from . import properties
ValueError: bad marshal data (unknown type code)

Answer 1

如果您收到该错误，则 Python 模块(.pyc 文件)的编译版本可能已损坏。 Gentoo Linux 提供 python-updater，但在 Debian 中更简单的修复方法:删除 .pyc 文件。如果您不知道 pyc，只需将其全部删除(以 root 身份):

find /usr -name '*.pyc' -delete