导入brightway2时的ImportError

Question

我在尝试导入brightway时遇到此导入错误：

import brightway2 as bw
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-1-a3ddbb8a34e8> in <module>
----> 1 import brightway2 as bw

/opt/anaconda3/envs/bw2/lib/python3.6/site-packages/brightway2/__init__.py in <module>
      1 # -*- coding: utf-8 -*
----> 2 from bw2data import *
      3 from bw2calc import *
      4 from bw2io import *
      5 

/opt/anaconda3/envs/bw2/lib/python3.6/site-packages/bw2data/__init__.py in <module>
     31 
     32 from .configuration import config
---> 33 from .project import projects
     34 from .utils import set_data_dir
     35 from .meta import (

/opt/anaconda3/envs/bw2/lib/python3.6/site-packages/bw2data/project.py in <module>
      6 from .errors import ReadOnlyProject
      7 from .filesystem import safe_filename, create_dir
----> 8 from .sqlite import PickleField, create_database
      9 from .utils import python_2_unicode_compatible
     10 from fasteners import InterProcessLock

/opt/anaconda3/envs/bw2/lib/python3.6/site-packages/bw2data/sqlite.py in <module>
      4 
      5 from peewee import SqliteDatabase, BlobField, Model, TextField
----> 6 from playhouse.shortcuts import RetryOperationalError
      7 import os
      8 try:

ImportError: cannot import name 'RetryOperationalError'

我使用的是macOS系统。我也尝试过重新安装conda，但是我一直收到相同的错误，所以我不确定哪里出了问题。如有任何帮助或建议，我们将不胜感激！

Answer 1

您的bw2data版本非常过时。Since 2018，即3.3版，此代码已更改。使用conda或pip升级bw2data，这取决于您最初安装它的方式。