【发布时间】：2018-04-11 21:01:47
【问题描述】：
我希望有人能帮助我理解为什么 JupyterLab 无法在我的系统上启动内核。
背景
我正在开发 macOS High Sierra。我曾经通过 Mac OS 安装程序在我的主文件夹 ($HOME/anaconda) 的默认位置安装 Anaconda。基于this thread我卸载了Anaconda。
我从 Homebrew Cask 重新安装了 Anaconda（将 export PATH=/usr/local/anaconda3/bin:"$PATH" 放在我的 .bashrc 中）。
问题
现在当我
- 运行
jupyter-lab， - 创建一个新笔记本，然后
- 选择 Python 3 内核，
进程失败，输出如下：
Traceback (most recent call last):
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/web.py", line 1543, in _execute
result = yield result
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1099, in run
value = future.result()
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1107, in run
yielded = self.gen.throw(*exc_info)
File "/usr/local/anaconda3/lib/python3.6/site-packages/notebook/services/sessions/handlers.py", line 73, in post
type=mtype))
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1099, in run
value = future.result()
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1107, in run
yielded = self.gen.throw(*exc_info)
File "/usr/local/anaconda3/lib/python3.6/site-packages/notebook/services/sessions/sessionmanager.py", line 79, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1099, in run
value = future.result()
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1107, in run
yielded = self.gen.throw(*exc_info)
File "/usr/local/anaconda3/lib/python3.6/site-packages/notebook/services/sessions/sessionmanager.py", line 92, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1099, in run
value = future.result()
File "/usr/local/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 315, in wrapper
yielded = next(result)
File "/usr/local/anaconda3/lib/python3.6/site-packages/notebook/services/kernels/kernelmanager.py", line 148, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "/usr/local/anaconda3/lib/python3.6/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "/usr/local/anaconda3/lib/python3.6/site-packages/jupyter_client/manager.py", line 259, in start_kernel
**kw)
File "/usr/local/anaconda3/lib/python3.6/site-packages/jupyter_client/manager.py", line 204, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "/usr/local/anaconda3/lib/python3.6/site-packages/jupyter_client/launcher.py", line 128, in launch_kernel
proc = Popen(cmd, **kwargs)
File "/usr/local/anaconda3/lib/python3.6/subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "/usr/local/anaconda3/lib/python3.6/subprocess.py", line 1344, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '~/anaconda/bin/python': '~/anaconda/bin/python'
我已经从我的环境（.bashrc、.bash_profile）中删除了对$HOME/anaconda（我的旧安装位置）的所有引用，所以我无法弄清楚引用的位置。
任何建议将不胜感激。
【问题讨论】：
标签： anaconda jupyter-notebook jupyter-lab homebrew-cask