Question

几个月后，我首先在终端输入jupyter notebook，我发现了这个问题：

[W 09:00:56.905 NotebookApp] No web browser found: could not locate runnable browser.

然后我在我的命令jupyter notebook --no-browser中添加了一些参数，它确实可以在我的浏览器中打开，但是，我无法创建一个Notebook，New中的选项是none，就像这样：

我的终端出现了红色警报信息：

[W 09:02:35.812 NotebookApp] Config option `token` not recognized by `NotebookApp`.
[W 09:02:35.813 NotebookApp] Config option `token` not recognized by `NotebookApp`.
[I 09:02:35.870 NotebookApp] Serving notebooks from local directory: /Users/yuanxiansen
[I 09:02:35.870 NotebookApp] 0 active kernels
[I 09:02:35.870 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/
[I 09:02:35.870 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/utils/path.py:258: UserWarning: get_ipython_dir has moved to the IPython.paths module
  warn("get_ipython_dir has moved to the IPython.paths module")
[E 09:02:37.613 NotebookApp] Unhandled error in API request
    Traceback (most recent call last):
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/traitlets/traitlets.py", line 501, in get
        value = obj._trait_values[self.name]
    KeyError: 'kernel_dirs'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/notebook/base/handlers.py", line 457, in wrapper
        result = yield gen.maybe_future(method(self, *args, **kwargs))
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/notebook/services/kernelspecs/handlers.py", line 56, in get
        for kernel_name in ksm.find_kernel_specs():
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/jupyter_client/kernelspec.py", line 128, in find_kernel_specs
        for kernel_dir in self.kernel_dirs:
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/traitlets/traitlets.py", line 529, in __get__
        return self.get(obj, cls)
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/traitlets/traitlets.py", line 508, in get
        value = self._validate(obj, dynamic_default())
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/jupyter_client/kernelspec.py", line 122, in _kernel_dirs_default
        dirs.append(os.path.join(get_ipython_dir(), 'kernels'))
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/utils/path.py", line 259, in get_ipython_dir
        from IPython.paths import get_ipython_dir
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/__init__.py", line 48, in <module>
        from .core.application import Application
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/core/application.py", line 24, in <module>
        from IPython.core import release, crashhandler
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/core/crashhandler.py", line 28, in <module>
        from IPython.core import ultratb
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/core/ultratb.py", line 121, in <module>
        from IPython.utils.terminal import get_terminal_size
      File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/IPython/utils/terminal.py", line 27, in <module>
        import backports.shutil_get_terminal_size
    ImportError: No module named 'backports.shutil_get_terminal_size'//maybe this line is a big problem
[E 09:02:37.615 NotebookApp] {
      "Host": "localhost:8888",
      "Cookie": "Idea-8ec252f0=b3a4190a-852e-471a-9fd8-dc517a355acb",
      "Accept-Encoding": "gzip, deflate, br",
      "Accept-Language": "zh-CN,zh;q=0.8,en;q=0.6",
      "Referer": "http://localhost:8888/tree",
      "Accept": "*/*",
      "Connection": "keep-alive",
      "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
      "X-Requested-With": "XMLHttpRequest"
    }
[E 09:02:37.615 NotebookApp] 500 GET /api/kernelspecs (::1) 7.87ms referer=http://localhost:8888/tree

正如您所看到的，我在终端中输入了pip3 install backports.shutil_get_terminal_size，但我收到了它存在的消息，有人能告诉我如何解决这个错误吗？

Answer 1

我遇到了同样的问题。就我而言，我系统上安装的 pexpect 和 traitlets 版本比 jupyter 需要的版本旧。运行后...

sudo -H python3.9 -m pip install --upgrade --ignore-installed pexpect traitlets

Jupyter 正确启动，我不再看到错误。

Jupyter笔记本无法创建笔记本

1 个答案: