不支持颜色终端库 Python/Jupyter

Question

我正在尝试在我的 Windows 7 机器上启动 Jupyter Notebook 服务器，但在键入后我不断收到这个奇怪的、看似无法搜索的错误：

jupyter notebook

进入 cmd.exe

C:\Users\zfleeman>jupyter notebook
Traceback (most recent call last):
  File "c:\python27\lib\runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "c:\python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\jupyter-notebook.EXE\__main__.py", line 9, in <modul
e>
  File "c:\python27\lib\site-packages\jupyter_core\application.py", line 267, in
 launch_instance
    return super(JupyterApp, cls).launch_instance(argv=argv, **kwargs)
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 657
, in launch_instance
    app.initialize(argv)
  File "<decorator-gen-7>", line 2, in initialize
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 87,
 in catch_config_error
    return method(app, *args, **kwargs)
  File "c:\python27\lib\site-packages\notebook\notebookapp.py", line 1290, in in
itialize
    super(NotebookApp, self).initialize(argv)
  File "<decorator-gen-6>", line 2, in initialize
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 87,
 in catch_config_error
    return method(app, *args, **kwargs)
  File "c:\python27\lib\site-packages\jupyter_core\application.py", line 239, in
 initialize
    self.parse_command_line(argv)
  File "c:\python27\lib\site-packages\notebook\notebookapp.py", line 1007, in pa
rse_command_line
    super(NotebookApp, self).parse_command_line(argv)
  File "<decorator-gen-4>", line 2, in parse_command_line
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 87,
 in catch_config_error
    return method(app, *args, **kwargs)
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 536
, in parse_command_line
    flags=flags, log=self.log)
  File "c:\python27\lib\site-packages\traitlets\traitlets.py", line 556, in __ge
t__
    return self.get(obj, cls)
  File "c:\python27\lib\site-packages\traitlets\traitlets.py", line 535, in get
    value = self._validate(obj, dynamic_default())
  File "c:\python27\lib\site-packages\traitlets\config\application.py", line 226
, in _log_default
    _log_formatter = self._log_formatter_cls(fmt=self.log_format, datefmt=self.l
og_datefmt)
  File "c:\python27\lib\site-packages\tornado\log.py", line 154, in __init__
    raise RuntimeError("No supported color terminal library")
RuntimeError: No supported color terminal library

这看起来更像是一个 Windows 问题而不是 Python 问题。有人可以给我一些建议吗？我只需要启动我的笔记本服务器。

Answer 1

我也遇到了同样的问题！正如 Ben 所说，显然是 Tornado 4.5 的错误

我解决了安装以前的包 Tornado 4.4.3

pip install tornado==4.4.3

然后我在 cmd.exe 中运行 Jupyter Notebook：

jupyter notebook

Answer 2

您是否安装了colorama？如果您安装了colorama 但不调用colorama.init()，这看起来像是刚刚发布的Tornado 4.5 中的错误。

Answer 3

禁用颜色： 在文件 c:\python27\lib\site-packages\tornado\log.py 的第 112 行查找 color=True 并将其更改为 color=False。 或者从 this repository 安装适用于 Windows 的 curses 模块

Answer 4

在更新 Anaconda Python 发行版时，Windows 10 上的 Python 2.7 遇到了同样的 jupyter 问题。 为 Tornado 日志文件设置 color=False 有助于解决问题。