新鮮的Windows 10安裝anaconda和jupyter - 內核錯誤（Python 2.7和3.5）

Question

我前段時間一直在使用ipython和jupyter一段時間。在近6個月內沒有使用它之後，我想再次開始使用它。

我安裝jupyter的最新版本，更新我的Python 2.7安裝，有點子的工作和安裝必要的程序包：

pip install jupyter 
pip install notebook 

等幹了那事我試圖進入一箇舊的筆記本電腦後（筆試在2.7中），但沒有與內核的連接。我想，當然，爲什麼不更新到最新的python 3版本並嘗試。這導致了同樣的問題。

我繼續安裝anaconda並創建了兩個虛擬envs，一個使用python 2.7，一個使用python 3.5。都安裝這樣的：

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

之後，我確信這兩個venvs已經jupyter通過激活他們，並試圖安裝包安裝。 （這是用py27和py35完成的，它們是從上面命令看到的venvs的名稱）。

activate py27 
conda install jupyter 

之後，我試圖運行：

jupyter notebook 

我創建了一個新的記事本文件，看看我是否有訪問內核。然而有人明確指出，我沒有跟以下錯誤：

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 

這顯然是對我的py35 VENV試圖然而，我得到我的py27 VENV同樣的錯誤。我嘗試了幾個例如運行kernelspec，但沒有任何成功。

有人對可能出錯的建議？

Answer 1

我有同樣的問題。您需要爲jupyter筆記本創建一個kernelspec。按照此鏈接解決它。

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