求助：运行Python代码出现AttributeError: pkg_resources无appdirs属性

问题详情 #

运行调用OvationPyme库的Python代码时触发AttributeError，错误提示为module 'pkg_resources' has no attribute 'appdirs'。

错误回溯信息：

AttributeError                            Traceback (most recent call last)
/tmp/ipykernel_10658/1029138787.py in <module>
      2 import datetime
      3 import matplotlib.pyplot as plt
----> 4 from ovationpyme.ovation_prime import FluxEstimator,AverageEnergyEstimator,BinCorrector
      5 from ovationpyme.ovation_utilities import calc_avg_solarwind
      6 from ovationpyme.ovation_plotting import latlt2polar,polar2dial,pcolor_flux

~/anaconda3/lib/python3.9/site-packages/ovationpyme-0.1.0-py3.9.egg/ovationpyme/__init__.py in <module>
----> 1 from . import ovation_prime
      2 from . import ovation_utilities
      3 from . import ovation_plotting

~/anaconda3/lib/python3.9/site-packages/ovationpyme-0.1.0-py3.9.egg/ovationpyme/ovation_prime.py in <module>
     10 from scipy import interpolate
     11 
----> 12 from ovationpyme import ovation_utilities
     13 
     14 from ovationpyme.ovation_utilities import robinson_auroral_conductance

~/anaconda3/lib/python3.9/site-packages/ovationpyme-0.1.0-py3.9.egg/ovationpyme/ovation_utilities.py in <module>
      9 
     10 from geospacepy import special_datetime, sun
----> 11 from nasaomnireader.omnireader import omni_interval
     12 from logbook import Logger
     13 log = Logger('OvationPyme.ovation_utilites')

~/anaconda3/lib/python3.9/site-packages/nasaomnireader-0.1.0-py3.9.egg/nasaomnireader/__init__.py in <module>
      1 # (C) 2020 University of Colorado AES-CCAR-SEDA (Space Environment Data Analysis) Group
      2 # Written by Liam M. Kilcommons
----> 3 from nasaomnireader.default_config import config

~/anaconda3/lib/python3.9/site-packages/nasaomnireader-0.1.0-py3.9.egg/nasaomnireader/default_config.py in <module>
      6 src_file_dir = os.path.dirname(os.path.realpath(__file__))
      7 
----> 8 appdirs = pkg_resources.appdirs.AppDirs('nasaomnireader','cuseda')
      9 
     10 data_dir = appdirs.user_data_dir #~/.local/share/AMGeO on Ubuntu

AttributeError: module 'pkg_resources' has no attribute 'appdirs'

运行的代码：

import numpy as np
import datetime
import matplotlib.pyplot as plt
from ovationpyme.ovation_prime import FluxEstimator,AverageEnergyEstimator,BinCorrector
from ovationpyme.ovation_utilities import calc_avg_solarwind
from ovationpyme.ovation_plotting import latlt2polar,polar2dial,pcolor_flux
from geospacepy.spherical_geometry import grid_surface_integral
import ipywidgets
from collections import OrderedDict
from functools import partial

解决方案 #

该错误源于nasaomnireader旧版本依赖pkg_resources.appdirs，但新版setuptools已移除该属性，可通过以下两种方式解决：

方法一：替换依赖并修改代码 #

• 先安装独立的appdirs库：

pip install appdirs

• 找到nasaomnireader的default_config.py文件（路径示例：~/anaconda3/lib/python3.9/site-packages/nasaomnireader-0.1.0-py3.9.egg/nasaomnireader/default_config.py），修改内容：
  • 添加import appdirs，移除原有的import pkg_resources（如果存在）
  • 将第8行的pkg_resources.appdirs.AppDirs改为appdirs.AppDirs

方法二：更新nasaomnireader到兼容版本 #

如果库有更新版本，直接升级即可，新版本大概率已修复该依赖问题：

pip install --upgrade nasaomnireader

内容的提问来源于stack exchange，提问作者ankush