執行jupyter時出現TypeError錯誤nbconvert

我在運行jupyter nbconvert時遇到問題。執行jupyter時出現TypeError錯誤nbconvert

它總是顯示下面的錯誤跟蹤（即使有一些香草電池的筆記本電腦）

Traceback (most recent call last): 
    File "/home/miguel/.virtualenvs/ipython/bin/jupyter-nbconvert", line 11, in <module> 
    sys.exit(main()) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/jupyter_core/application.py", line 267, in launch_instance 
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/traitlets/config/application.py", line 596, in launch_instance 
    app.start() 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/nbconvertapp.py", line 293, in start 
    self.convert_notebooks() 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/nbconvertapp.py", line 447, in convert_notebooks 
    self.exporter = cls(config=self.config) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/exporters/templateexporter.py", line 151, in __init__ 
    super(TemplateExporter, self).__init__(config=config, **kw) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/exporters/exporter.py", line 101, in __init__ 
    self._init_preprocessors() 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/exporters/exporter.py", line 250, in _init_preprocessors 
    self.register_preprocessor(preprocessor, enabled=True) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/nbconvert/exporters/exporter.py", line 211, in register_preprocessor 
    preprocessor_cls = import_item(preprocessor) 
    File "/home/miguel/.virtualenvs/ipython/local/lib/python2.7/site-packages/ipython_genutils/importstring.py", line 31, in import_item 
    module = __import__(package, fromlist=[obj]) 
TypeError: Item in ``from list'' not a string

這可能與我最近安裝了nbextensions有關，因爲前幾天的jupyter nbconvert命令用來完美地工作。

今天，我在安裝nbextensions時遇到了一些麻煩。我嘗試使用conda，但最後它在我遵循here的指示時工作。

來源

2016-08-02 kiril

你有一個'〜/ .jupyter/jupyter_nbconvert_config.py'（或'.json'）文件？ –

今天我有同樣的問題。看起來這是nbconvert中的一個錯誤，如記錄here。解決方案是編輯你的「jupyter_nbconvert_config.json」文件。對我來說，這是設在我的主目錄默認爲：/home/me/.jupyter/jupyter_nbconvert_config.json

在那裏，我改變了預處理器字符串，在他們面前添加「R」：

{ 
    "Exporter": { 
    "template_path": [ 
     ".", 
     "/usr/lib/python2.7/site- packages/jupyter_contrib_nbextensions/templates" 
    ], 
    "preprocessors": [ 
     r"jupyter_contrib_nbextensions.nbconvert_support.CodeFoldingPreprocessor", 
     r"jupyter_contrib_nbextensions.nbconvert_support.PyMarkdownPreprocessor" 
    ] 
    }, 
    "NbConvertApp": { 
    "postprocessor_class":  "jupyter_contrib_nbextensions.nbconvert_support.EmbedPostProcessor" 
    }, 
    "version": 1 
}

來源

2016-08-24 16:31:49 cirne

將r添加到JSON配置中的字符串會導致JSONDecodedError。這似乎工作（等待更新版本的ipython_genutils）：https://github.com/jupyter/nbconvert/issues/362#issuecomment-246169144 –

爲我工作。我必須更改兩個相同的JSON文件：一個在〜/ .jupyter /中，另一個在'〜/ anaconda/etc/jupyter'中。出於某種奇怪的原因，只更改一個文件不起作用。 –

找到解決方案here。基本上，您需要刪除或重命名您的jupyter_nbconvert_config文件。

來源

2016-10-21 22:15:35 hercmulligan

最近修復了這個bug，詳見here。運行完整的更新IPython中，或者手工修復：

變線在ipython_genutils 31/importstring.py從

module = __import__(package, fromlist=[obj])

到

module = __import__(package, fromlist=[str(obj)])

來源

2016-12-21 16:19:46 akaufman10

執行jupyter時出現TypeError錯誤nbconvert

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