如何解决从bokeh.models导入Box时出现的ImportError错误？

问题场景 #

尝试在Bokeh中将坐标参考系统（CRS）切换为切片服务，按照建议安装GeoViews后，执行import geoviews as gv时触发导入错误。

错误日志 #

import geoviews as gv
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/geoviews/__init__.py", line 3, in <module>
    from holoviews import (extension, help, opts, output, renderer, Store, # noqa (API import)
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/holoviews/__init__.py", line 12, in <module>
    from .annotators import annotate                         # noqa (API import)
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/holoviews/annotators.py", line 10, in <module>
    from panel.pane import PaneBase
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/__init__.py", line 3, in <module>
    from . import layout # noqa
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/layout/__init__.py", line 1, in <module>
    from .accordion import Accordion # noqa
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/layout/accordion.py", line 5, in <module>
    from .base import NamedListPanel
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/layout/base.py", line 13, in <module>
    from ..io.model import hold
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/io/__init__.py", line 8, in <module>
    from ..config import config
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/config.py", line 20, in <module>
    from .io.notebook import load_notebook
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/io/notebook.py", line 40, in <module>
    from .embed import embed_state
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/io/embed.py", line 20, in <module>
    from .model import add_to_doc, diff
  File "/home/kevin1/anaconda3/lib/python3.9/site-packages/panel/io/model.py", line 11, in <module>
    from bokeh.models import Box, ColumnDataSource, Model
ImportError: cannot import name 'Box' from 'bokeh.models' (/home/kevin1/anaconda3/lib/python3.9/site-packages/bokeh/models/__init__.py)

已尝试的操作 #

• 安装HoloViews
• 执行以下命令重新安装Bokeh：

  conda install -c bokeh bokeh
  conda install -c "bokeh/label/dev" bokeh
  

解决方案 #

错误根源是Panel版本与当前Bokeh版本不兼容：Panel代码中尝试导入Bokeh的Box类，但该类在部分Bokeh版本中已被移除或重命名。

具体解决步骤 #

1. 查看当前环境的Panel版本：

   conda list panel
   

2. 安装与Bokeh版本匹配的Panel：
   • 若使用Bokeh 3.x，需确保Panel版本为1.x及以上；
   • 最稳妥的方式是创建全新conda环境，一次性安装兼容的全套依赖：

     conda create -n geo-env python=3.9
     conda activate geo-env
     conda install -c pyviz geoviews bokeh panel
     

3. 激活新环境后重新尝试导入：

   import geoviews as gv
   

内容的提问来源于stack exchange，提问作者Peter