Jupyter笔记本使用错误的PATH（使用Miniconda而不是Anaconda）

问题描述：

我试过卸载Miniconda并重新安装Anaconda。在终端中运行Python找到合适的库和PATH，但jupyter会说numpy没有安装，因为它找不到conda包。Jupyter笔记本使用错误的PATH（使用Miniconda而不是Anaconda）

这是我从echo $PATH

/home/clu/anaconda3/bin:/home/clu/anaconda3/bin:/home/clu/anaconda3/bin:/home/clu/anaconda3/bin:/home/clu/anaconda3/bin:/home/clu/bin:/home/clu/.local/bin:/home/clu/anaconda3/bin:/home/clu/miniconda3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/local/cuda/bin:/usr/local/caffe/bin:/snap/bin:/home/clu/anaconda3/bin

这得到的是错误启动在jupyter一个新内核

Traceback (most recent call last): 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/notebook/base/handlers.py", line 516, in wrapper 
    result = yield gen.maybe_future(method(self, *args, **kwargs)) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1055, in run 
    value = future.result() 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/concurrent.py", line 238, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 4, in raise_exc_info 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1063, in run 
    yielded = self.gen.throw(*exc_info) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/notebook/services/sessions/handlers.py", line 75, in post 
    type=mtype)) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1055, in run 
    value = future.result() 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/concurrent.py", line 238, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 4, in raise_exc_info 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1063, in run 
    yielded = self.gen.throw(*exc_info) 
    File "/home/clu/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 "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1055, in run 
    value = future.result() 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/concurrent.py", line 238, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 4, in raise_exc_info 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1063, in run 
    yielded = self.gen.throw(*exc_info) 
    File "/home/clu/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 "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 1055, in run 
    value = future.result() 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/concurrent.py", line 238, in result 
    raise_exc_info(self._exc_info) 
    File "<string>", line 4, in raise_exc_info 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/tornado/gen.py", line 307, in wrapper 
    yielded = next(result) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/notebook/services/kernels/kernelmanager.py", line 94, in start_kernel 
    super(MappingKernelManager, self).start_kernel(**kwargs) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel 
    km.start_kernel(**kwargs) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/jupyter_client/manager.py", line 257, in start_kernel 
    **kw) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/jupyter_client/manager.py", line 203, in _launch_kernel 
    return launch_kernel(kernel_cmd, **kw) 
    File "/home/clu/anaconda3/lib/python3.6/site-packages/jupyter_client/launcher.py", line 128, in launch_kernel 
    proc = Popen(cmd, **kwargs) 
    File "/home/clu/anaconda3/lib/python3.6/subprocess.py", line 707, in __init__ 
    restore_signals, start_new_session) 
    File "/home/clu/anaconda3/lib/python3.6/subprocess.py", line 1326, in _execute_child 
    raise child_exception_type(errno_num, err_msg) 
FileNotFoundError: [Errno 2] No such file or directory: '/home/clu/miniconda3/bin/python3'

'/家庭/ CLU/miniconda3/bin'不包含'python3'可执行文件。目录是否存在？ –

不，我卸载时卸下了它Miniconda – Char

检查'PYTHONHOME' env。变量。我认为它不应该存在，或指向正确的位置。 –

答

发现（也由https://github.com/lmmx/devnotes/wiki/Install-Python-3-and-Python-2-kernels-for-Jupyter-notebook决定）解决方法

设置PYTHONHOME到/home/clu/anaconda3：强制Jupyter启动器使用这个现有的python发行版。

Jupyter笔记本使用错误的PATH（使用Miniconda而不是Anaconda）

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