Question

我发现了一个很棒的jupyterlab扩展程序，可以打开xls，xlsx和csv文件（jupyterlab-spreadsheet）。我经常使用制表符分隔的文件，并在文件的末尾添加一个额外的标题行，以.acq结尾。用.csv扩展名重命名文件我可以在Open With菜单中选择Spreadsheet扩展名。除默认的csv-viewer以外，该文件已打开并正确显示。尝试添加所需的文件扩展名时，我以zip文件的形式下载了存储库内容，将其解压缩到工作文件夹中，并通读了文件，然后将文件扩展名添加到index.ts文件中：

app.docRegistry.addFileType({
    name: "excel",
    displayName: "Excel Workbook",
    fileFormat: "base64",
    extensions: [
        ".xls",
        ".xlsx",
        ".acq",
        ".atc",
        ".ats",
        ".atr"
    ],
    mimeTypes: [
        "application/octet-stream",
        "text/plain"
    ]
});

然后我尝试使用

进行安装

yarn install
yarn build
jupyter labextension install .

启动jupyterhub并尝试连接时，我收到以下消息：

[I 2019-03-01 16:01:51.222 JupyterHub spawner:1100] Spawning jupyter-labhub --port=53857
**Note: Removing dead /root/buildingfromsource/jupyterlab-spreadsheet-master "jupyterlab-spreadsheet"
Traceback (most recent call last):
  File "/opt/anaconda3/bin/jupyter-labhub", line 7, in <module>
    from jupyterlab.labhubapp import main
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/labhubapp.py", line 2, in <module>
    from .labapp import LabApp
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/labapp.py", line 37, in <module>
    app_version = get_app_version()
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 348, in get_app_version
    handler = _AppHandler(app_dir)
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 386, in __init__
    self.info = self._get_app_info()
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 812, in _get_app_info
    info['local_extensions'] = self._get_local_extensions()
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 1108, in _get_local_extensions
    return self._get_local_data('local_extensions')
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 1243, in _get_local_data
    self._write_build_config(config)
  File "/opt/anaconda3/lib/python3.7/site-packages/jupyterlab/commands.py", line 1204, in _write_build_config
    with open(target, 'w') as fid:
PermissionError: [Errno 13] Permission denied: '/opt/anaconda3/share/jupyter/lab/settings/build_config.json'

完全没有使用nodejs的经验，我想知道更改index.ts是否是正确的开始。我是否错过了我应该做的其他事情？可以在配置文件中交替设置文件扩展名吗？

将文件扩展名添加到jupyterlab电子表格

0 个答案: