如何修复“启动内核失败”

Question

我最近为我的Mac更新了IOS软件，不知怎么的，另一个python被删除了。我重新下载了anacoda和python，现在有了3.7.6版（这是在终端中键入“python--version”后唯一显示的内容）。但是，当尝试使用Jupiter笔记本时（无论是从终端还是anaconda提示符），它将不允许我运行任何代码。红色内核错误状态为“无法启动内核”，并显示以下内容：

Traceback (most recent call last):
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/web.py", line 1699, in _execute
    result = await result
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/notebook/services/sessions/handlers.py", line 72, in post
    type=mtype))
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
    value = future.result()
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 88, in create_session
    kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
    value = future.result()
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 101, in start_kernel_for_session
    self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
    value = future.result()
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 209, in wrapper
    yielded = next(result)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/notebook/services/kernels/kernelmanager.py", line 168, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 259, in start_kernel
    **kw)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 204, in _launch_kernel
    return launch_kernel(kernel_cmd, **kw)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/launcher.py", line 138, in launch_kernel
    proc = Popen(cmd, **kwargs)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "/Users/gregorybrown/opt/anaconda3/lib/python3.7/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/anaconda3/bin/python': '/anaconda3/bin/python'

有人有办法缓解这个问题吗？请记住，我是第一次通过课堂学习python，所以我的行话和流程不如其他人流利