pipenv --python 3.7.4 を実行した時のエラー

Question

pipenv --python 3.7.4　としたら、以下のようなエラーが出ました。
環境は
MacOSX Mojave 10.14.6

ryoyaMac:~ ryoyaonishi$ pipenv --python 3.7.4
Traceback (most recent call last):
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/python.py", line 112, in get_versions
    version = PythonVersion.parse(p.name)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/python.py", line 359, in parse
    version_dict = parse_python_version(str(version))
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/utils.py", line 86, in parse_python_version
    raise InvalidPythonVersion("%s is not a python version" % version_str)
pipenv.vendor.pythonfinder.exceptions.InvalidPythonVersion: .ipynb_checkpoints is not a python version

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/bin/pipenv", line 11, in <module>
    load_entry_point('pipenv==2018.11.26', 'console_scripts', 'pipenv')()
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 1114, in invoke
    return Command.invoke(self, ctx)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/cli/command.py", line 208, in cli
    clear=state.clear,
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/core.py", line 574, in ensure_project
    pypi_mirror=pypi_mirror,
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/core.py", line 494, in ensure_virtualenv
    python = ensure_python(three=three, python=python)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/core.py", line 397, in ensure_python
    path_to_python = find_a_system_python(python)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/core.py", line 360, in find_a_system_python
    python_entry = finder.find_python_version(line)
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/pythonfinder.py", line 113, in find_python_version
    return self.system_path.find_python_version(
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/pythonfinder.py", line 54, in system_path
    ignore_unsupported=self.ignore_unsupported,
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/path.py", line 451, in create
    ignore_unsupported=ignore_unsupported,
  File "<attrs generated init 75e45f144e3d5510d54dd5fca6730b98fa0220a9>", line 38, in __init__
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/path.py", line 116, in __attrs_post_init__
    self._setup_pyenv()
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/path.py", line 196, in _setup_pyenv
    version_glob_path="versions/*", ignore_unsupported=self.ignore_unsupported
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/python.py", line 156, in create
    sort_function=sort_function, version_glob_path=version_glob_path)
  File "<attrs generated init f21232f7b3952da51c18251b86babeaee4abcbb8>", line 17, in __init__
  File "/usr/local/Cellar/pipenv/2018.11.26_2/libexec/lib/python3.7/site-packages/pipenv/vendor/pythonfinder/models/python.py", line 114, in get_versions
    entry = next(iter(version_path.find_all_python_versions()), None)
AttributeError: 'NoneType' object has no attribute 'find_all_python_versions'
ryoyaMac:~ ryoyaonishi$ 

.ipynb_checkpoints is not a python version
の対策をすれば良いと思われますが。

同様のエラーで、
https://qiita.com/realteck/items/3b89ba0add47d347d428
とあります。

.DS_storeを削除すれば解決していたのですが、
.ファイルの居場所を突き止めるのはどう打ち込めばいいのでしょうか。

Answer 1

rm $HOME/pyenv/versions/.ipynb_checkpoints
を削除して、
再度、実行したところ、同様のエラーが出たので、
（よくわからない場所で、jupyter を起動したのか、）他の場所の同じファイルが邪魔してるのでしょうか。

隠しファイルの検索方法ですが、
mdfind -a .ipynb_checkpoint
としても、見つからなかったので、どう検索すればいいかはわからずじまいです。
そのうち、勉強します。

とりあえず、pyenvと、pipenvをアンインストールして、再インストールすると、なんとか、治りました。

その際はこの記事がよかったです。
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