haasad
commented
2 years ago You could try to make a backup copy of the C:\Users\cansu\AppData\Local\pylca\Brightway3\default.c21f969b5f03d33d43e04f8f136e7682\setups.pickle and then delete it.
When I google your error message: cannot import name 'databases' from partially initialized module 'bw2data', the very first result is the following stackoverflow thread that suggests the same: https://stackoverflow.com/questions/60542566/cannot-anymore-import-brightway2-importerror
One other thing you could check if there's any files in your directory that could cause import errors, for example if you have a file called databases.py this could produce a circular import error like mentioned in the error message.
bthnkrts
Hello everyone, Recently I am struggling with a problem of brightway import. I am performing an LCA project for my master thesis and it is stuck. Since yesterday, python/jupyternotebook is giving the following problem. I need to find a solution asap. Is there anyone who can help me? Any advice or answer would be awesome helpful.
Thank u!
### Input import brightway2 as bw import os
import numpy as np
import pandas as pd
from matplotlib import pyplot as plt
### Output
ImportError Traceback (most recent call last) File ~\anaconda3\envs\MG\lib\site-packages\bw2data\serialization.py:242, in PickledDict.deserialize(self) 241 try: --> 242 return self.unpack(pickle.load(open(self.filepath, "rb"))) 243 except ImportError:
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\backends__init__.py:5, in
3 from eight import *
----> 5 from .base import LCIBackend
6 from .peewee import SQLiteBackend
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\backends\base.py:5, in
3 from eight import *
----> 5 from .. import (
6 config,
7 databases,
8 geomapping,
9 mapping,
10 projects,
11 )
12 from ..data_store import ProcessedDataStore
**ImportError: cannot import name 'databases' from partially initialized module 'bw2data' (most likely due to a circular import) (C:\Users\cansu\anaconda3\envs\MG\lib\site-packages\bw2data__init__.py)
During handling of the above exception, another exception occurred:**
PickleError Traceback (most recent call last) Input In [1], in <cell line: 1>() ----> 1 import brightway2 as bw 2 import os # to use "operating system dependent functionality" 3 import numpy as np # "the fundamental package for scientific computing with Python"
File ~\anaconda3\envs\MG\lib\site-packages\brightway2__init__.py:2, in
1 # -- coding: utf-8 -
----> 2 from bw2data import
3 from bw2calc import
4 from bw2io import *
File ~\anaconda3\envs\MG\lib\site-packages\bw2data__init__.py:35, in
33 from .project import projects
34 from .utils import set_data_dir
---> 35 from .meta import (
36 dynamic_calculation_setups,
37 calculation_setups,
38 databases,
39 geomapping,
40 mapping,
41 methods,
42 normalizations,
43 preferences,
44 weightings,
45 )
47 # Add metadata class instances to global list of serialized metadata
48 config.metadata.extend([
49 dynamic_calculation_setups,
50 calculation_setups,
(...)
57 weightings,
58 ])
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\meta.py:192, in
190 preferences = Preferences()
191 weightings = WeightingMeta()
--> 192 calculation_setups = CalculationSetups()
193 dynamic_calculation_setups = DynamicCalculationSetups()
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\serialization.py:123, in SerializedDict.init(self, dirpath) 118 raise NotImplemented("SerializedDict must be subclassed, and the filename must be set.") 119 self.filepath = os.path.join( 120 dirpath or projects.dir, 121 self.filename 122 ) --> 123 self.load()
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\serialization.py:128, in SerializedDict.load(self) 126 """Load the serialized data. Creates the file if not yet present.""" 127 try: --> 128 self.data = self.deserialize() 129 except IOError: 130 # Create if not present 131 self.data = {}
File ~\anaconda3\envs\MG\lib\site-packages\bw2data\serialization.py:245, in PickledDict.deserialize(self) 243 except ImportError: 244 TEXT = "Pickle deserialization error in file '%s'" % self.filepath --> 245 raise PickleError(TEXT)
PickleError: Pickle deserialization error in file 'C:\Users\cansu\AppData\Local\pylca\Brightway3\default.c21f969b5f03d33d43e04f8f136e7682\setups.pickle'