我可以打开 jupyter 笔记本，但无法在 Mac 上运行带有 python 脚本的笔记本

Question

一年多以来，我一直在使用 jupyter 以及 Atom 和 python。 我目前在 macOS 10.14 上使用 Python 3.7.2。 从终端运行 Python 没有问题，这是我在运行sys.path后得到的 PATH ：

['', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python37.zip', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/lib-dynload', '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages']

我可以在 jupyter 中打开一个 jupyter 笔记本，但由于某些不明原因，我无法运行该笔记本，并且当我单击它时，页面右上角出现红色Kernel error ，并显示以下错误消息：

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/web.py", line 1699, in _execute
    result = await result
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 736, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/notebook/services/sessions/handlers.py", line 73, in post
    type=mtype))
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 729, in run
    value = future.result()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 736, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 729, in run
    value = future.result()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 736, in run
    yielded = self.gen.throw(*exc_info)  # type: ignore
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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 "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 729, in run
    value = future.result()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/tornado/gen.py", line 209, in wrapper
    yielded = next(result)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/notebook/services/kernels/kernelmanager.py", line 160, in start_kernel
    super(MappingKernelManager, self).start_kernel(**kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
    km.start_kernel(**kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/jupyter_client/manager.py", line 259, in start_kernel
    **kw)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/jupyter_client/manager.py", line 204, in _launch_kernel
    return launch_kernel(kernel_cmd, **kw)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/jupyter_client/launcher.py", line 138, in launch_kernel
    proc = Popen(cmd, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1522, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
PermissionError: [Errno 13] Permission denied: '/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7'

这是我的 PATH （在命令之后获得： nano ~/.bash_profile ）

# Homebrew
export PATH=/usr/local/bin:$PATH

# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.7/bin:${PATH}"
export PATH

# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.7/bin:${PATH}"
export PATH

我已经卸载了我计算机上的所有 python 安装，包括 anaconda 版本（python 2.7 除外，因为我的 mac 不接受我删除它）

Answer 1

好的，我所做的是我卸载了 python 并使用Homebrew重新安装了所有内容并且它起作用了