Ipython笔记本,如何设置正确的内核路径

Question

在Windows 7 64bit上运行ipyhton笔记本并使用python 2内核启动笔记本时出现错误:

Traceback (most recent call last):
  File "C:\Users\USER1\Anaconda2\lib\site-packages\notebook\base\handlers.py", line 436, in wrapper
    result = yield gen.maybe_future(method(self, *args, **kwargs))
  File "C:\Users\USER1\Anaconda2\lib\site-packages\notebook\services\sessions\handlers.py", line 56, in post
    model = sm.create_session(path=path, kernel_name=kernel_name)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 66, in create_session
    kernel_name=kernel_name)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 84, in start_kernel
    **kwargs)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\jupyter_client\multikernelmanager.py", line 109, in start_kernel
    km.start_kernel(**kwargs)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\jupyter_client\manager.py", line 244, in start_kernel
    **kw)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\jupyter_client\manager.py", line 190, in _launch_kernel
    return launch_kernel(kernel_cmd, **kw)
  File "C:\Users\USER1\Anaconda2\lib\site-packages\jupyter_client\launcher.py", line 115, in launch_kernel
    proc = Popen(cmd, **kwargs)
  File "C:\Users\USER1\Anaconda2\lib\subprocess.py", line 710, in __init__
    errread, errwrite)
  File "C:\Users\USER1\Anaconda2\lib\subprocess.py", line 958, in _execute_child
    startupinfo)
WindowsError: [Error 2] The system cannot find the file specified

我进一步调查了,我proc = Popen(cmd, **kwargs)在launcher.py文件中添加了以下打印行

    print cmd
    print kwargs

现在我看到proc = Popen(cmd, **kwargs)用cmd =调用

['C:\\Users\\USER1\\Anaconda2_32bit\\python.exe', '-m', 'ipykernel', '-f', '
C:\\Users\\USER1\\AppData\\Roaming\\jupyter\\runtime\\kernel-a3f46334-4491-4
fef-aeb1-6772b8392954.json']

这是一个问题,因为我的python.exe不在

C:\\Users\\USER1\\Anaconda2_32bit\\python.exe

但在

C:\\Users\\USER1\\Anaconda2\\python.exe

但是,我已经检查了计算机/高级系统设置/高级/环境变量中的路径,并且\\Anaconda2_32bit\\从未在那里指定过.

因此我怀疑在其他地方指定了错误路径.这可能在哪里,我该如何解决？

此外,我之前安装了Anaconda,\\Anaconda2_32bit\\但我已经卸载了它.

Answer 1

ipython在特殊配置文件中注册了内核我运行了命令:

ipython kernelspec list

输出是:

Available kernels:
  python2    C:\ProgramData\jupyter\kernels\python2

我查看了C:\ProgramData\jupyter\kernels\python2\kernel.json 文件,并为python2设置了错误的路径.我已修复路径,现在可以正常工作了.