加载 Jupyter 服务器扩展时找不到模块

Question

我想在本地目录中加载 Jupyter Notebook Server Extension:

server_ext/
|__  __init__.py
|__  extension.py

extension.py

from notebook.utils import url_path_join
from notebook.base.handlers import IPythonHandler

class HelloWorldHandler(IPythonHandler):
    def get(self):
        self.finish('Hello, world!')

def load_jupyter_server_extension(nbapp):
    """
    nbapp is istance of Jupyter.notebook.notebookapp.NotebookApp
    nbapp.web_app is isntance of tornado.web.Application - can register new tornado.web.RequestHandlers
    to extend API backend.
    """
    nbapp.log.info('My Extension Loaded')
    web_app = nbapp.web_app
    host_pattern = '.*$'
    route_pattern = url_path_join(web_app.settings['base_url'], '/hello')
    web_app.add_handlers(host_pattern, [(route_pattern, HelloWorldHandler)])

我运行从包含 server_ext 的目录中执行以下命令：

jupyter notebook --NotebookApp.server_extensions="['server_ext.extension']"

但是我收到错误 "No module named extension"。我需要做些什么才能让 Jupyter/python 会话识别模块的路径吗？

Answer 1

想通了 -

原来Jupyter Notebook对importlib.import_module的调用设置了package=None，这意味着相对路径将不起作用

作为解决方法，可以修改 ~/.jupyter/jupyter_notebook_config.py 脚本以将您的本地目录附加到 PYTHONPATH，以便可以找到该模块。

import sys
sys.path.append("C:\Users\eric\server_ext")

c.NotebookApp.server_extensions = [
    'extension'
]

加载 Jupyter 服务器扩展时找不到模块

Can't find module when loading Jupyter Server Extension

python

jupyter