python - 安装时 ipyleaflet map 未在 jupyter 笔记本中渲染

Question

在笔记本中运行以下命令:

!pip install ipyleaflet
!jupyter nbextension enable --py --sys-prefix ipyleaflet

成功注册ipyleaflet扩展:

Enabling notebook extension jupyter-leaflet/extension...
      - Validating: ok

但是在同一笔记本中渲染 map 不起作用:

from ipyleaflet import Map, basemaps
Map(
    center=(0, 0),
    zoom=1,
    scroll_wheel_zoom=True,
    basemap=basemaps.OpenStreetMap.Mapnik,
)

错误:

[Open Browser Console for more detailed log - Double click to close this message]
Failed to load model class 'LeafletMapModel' from module 'jupyter-leaflet'
Error: Script error for "jupyter-leaflet"
http://requirejs.org/docs/errors.html#scripterror
    at makeError (http://localhost:8888/static/components/requirejs/require.js?v=d37b48bb2137faa0ab98157e240c084dd5b1b5e74911723aa1d1f04c928c2a03dedf922d049e4815f7e5a369faa2e6b6a1000aae958b7953b5cc60411154f593:168:17)
    at HTMLScriptElement.onScriptError (http://localhost:8888/static/components/requirejs/require.js?v=d37b48bb2137faa0ab98157e240c084dd5b1b5e74911723aa1d1f04c928c2a03dedf922d049e4815f7e5a369faa2e6b6a1000aae958b7953b5cc60411154f593:1735:36)

浏览器说

Refused to execute script from 'http://localhost:8888/static/jupyter-leaflet.js?v=20221102111053' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

---

现有的解决方案是将 Jupyter Notebook 升级到 5.7.7，但我使用的是 6.5.2 版本。

如果我使用笔记本重新加载页面，ipyleaflet map 将正确显示。

我怎样才能让它在第一遍就起作用？

Answer 1

我在运行 Jupyter Notebook 时收到了相同的错误，但重新启动内核，然后关闭并重新打开该文件对我有用。