新鲜的Windows 10安装anaconda和jupyter - 内核错误（Python 2.7和3.5）

Question

我前段时间一直在使用ipython和jupyter一段时间。在近6个月内没有使用它之后，我想再次开始使用它。

我安装jupyter的最新版本，更新我的Python 2.7安装，有点子的工作和安装必要的程序包：

pip install jupyter 
pip install notebook 

等干了那事我试图进入一个旧的笔记本电脑后（笔试在2.7中），但没有与内核的连接。我想，当然，为什么不更新到最新的python 3版本并尝试。这导致了同样的问题。

我继续安装anaconda并创建了两个虚拟envs，一个使用python 2.7，一个使用python 3.5。都安装这样的：

conda create --name py27 python=2.7 anaconda 
conda create --name py35 python=3.5 anaconda 

之后，我确信这两个venvs已经jupyter通过激活他们，并试图安装包安装。 （这是用py27和py35完成的，它们是从上面命令看到的venvs的名称）。

activate py27 
conda install jupyter 

之后，我试图运行：

jupyter notebook 

我创建了一个新的记事本文件，看看我是否有访问内核。然而有人明确指出，我没有跟以下错误：

Traceback (most recent call last): 
    File "E:\Anaconda3\envs\py35\lib\site-packages\notebook\base\handlers.py", line 458, in wrapper 
    result = yield gen.maybe_future(method(self, *args, **kwargs)) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 1008, in run 
    value = future.result() 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\concurrent.py", line 232, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 3, in raise_exc_info 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 1014, in run 
    yielded = self.gen.throw(*exc_info) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\notebook\services\sessions\handlers.py", line 58, in post 
    sm.create_session(path=path, kernel_name=kernel_name)) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 1008, in run 
    value = future.result() 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\concurrent.py", line 232, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 3, in raise_exc_info 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 1014, in run 
    yielded = self.gen.throw(*exc_info) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 73, in create_session 
    self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 1008, in run 
    value = future.result() 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\concurrent.py", line 232, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 3, in raise_exc_info 
    File "E:\Anaconda3\envs\py35\lib\site-packages\tornado\gen.py", line 282, in wrapper 
    yielded = next(result) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 87, in start_kernel 
    super(MappingKernelManager, self).start_kernel(**kwargs) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\jupyter_client\multikernelmanager.py", line 109, in start_kernel 
    km.start_kernel(**kwargs) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\jupyter_client\manager.py", line 244, in start_kernel**kw) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\jupyter_client\manager.py", line 190, in _launch_kernel 
    return launch_kernel(kernel_cmd, **kw) 
    File "E:\Anaconda3\envs\py35\lib\site-packages\jupyter_client\launcher.py", line 108, in launch_kernel 
    proc = Popen(cmd, **kwargs) 
    File "E:\Anaconda3\envs\py35\lib\subprocess.py", line 950, in __init__ restore_signals, start_new_session) 
    File "E:\Anaconda3\envs\py35\lib\subprocess.py", line 1220, in _execute_child startupinfo) 
FileNotFoundError: [WinError 2] The system cannot find the file specified 

这显然是对我的py35 VENV试图然而，我得到我的py27 VENV同样的错误。我尝试了几个例如运行kernelspec，但没有任何成功。

有人对可能出错的建议？

Answer 1

我有同样的问题。您需要为jupyter笔记本创建一个kernelspec。按照此链接解决它。

How to start an ipython shell(not notebook) within a conda or virtualenv