Pipenv: Pipenv 2018.10.9 não consegue lidar com tabelas inline

Descrição do problema

Pipenv falha com um erro de toml ao tentar fazer qualquer coisa em um Pipfile que contém uma tabela [package.<>] , algo que versões anteriores de pipenv reescreveram da forma embutida para a forma expandida. Ironicamente, o erro que ele levanta é um erro de atributo ao tentar analisar uma tabela _inline_, que não precisa existir no arquivo de exemplo.

Por exemplo, este Pipfile está quebrado (com ou sem a seção [package] vazia):

[packages]

[packages.apache-airflow]
editable = true
git = "https://github.com/apache/incubator-airflow.git"

[requires]
python_version = "3.7"

Este Pipfile não está quebrado _para este problema_ (em vez disso, é bloqueado pelo show stopper em # 2984):

[packages]
apache-airflow = {editable = true, git = "https://github.com/apache/incubator-airflow.git"}

[requires]
python_version = "3.7"

Resultado esperado

pipenv para funcionar (instalar, bloquear, shell, etc).

Resultado atual

Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/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/lib/python3.7/site-packages/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/pipenv/cli/command.py", line 308, in lock
    ensure_project(three=state.three, python=state.python, pypi_mirror=state.pypi_mirror)
  File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 561, in ensure_project
    pypi_mirror=pypi_mirror,
  File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 484, in ensure_virtualenv
    python = ensure_python(three=three, python=python)
  File "/usr/local/lib/python3.7/site-packages/pipenv/core.py", line 394, in ensure_python
    python = project.required_python_version
  File "/usr/local/lib/python3.7/site-packages/pipenv/project.py", line 229, in required_python_version
    required = self.parsed_pipfile.get("requires", {}).get(
  File "/usr/local/lib/python3.7/site-packages/pipenv/project.py", line 448, in parsed_pipfile
    parsed = self._parse_pipfile(contents)
  File "/usr/local/lib/python3.7/site-packages/pipenv/project.py", line 480, in _parse_pipfile
    data[section][package] = toml._get_empty_inline_table(dict)
AttributeError: module 'toml' has no attribute '_get_empty_inline_table'

Versão Pipenv: '2018.10.9'

Localização do Pipenv: '/usr/local/lib/python3.7/site-packages/pipenv'

Localização do Python: '/usr/local/opt/python/bin/python3.7'

Instalações Python encontradas:

• 3.7.0 : /Users/jacobhayes/.local/share/virtualenvs/yay-vfCSW5aP/bin/python3.7
• 3.7.0 : /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/bin/python3.7
• 3.7.0 : /usr/local/Cellar/python/3.7.0/Frameworks/Python.framework/Versions/3.7/bin/python3.7m
• 2.7.15 : /usr/local/Cellar/python@2/2.7.15_1/Frameworks/Python.framework/Versions/2.7/bin/python2.7
• 2.7.10 : /usr/bin/python
• 2.7.10 : /usr/bin/pythonw
• 2.7.10 : /System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7

Informações PEP 508:

{'implementation_name': 'cpython',
 'implementation_version': '3.7.0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '18.0.0',
 'platform_system': 'Darwin',
 'platform_version': 'Darwin Kernel Version 18.0.0: Wed Aug 22 20:13:40 PDT '
                     '2018; root:xnu-4903.201.2~1/RELEASE_X86_64',
 'python_full_version': '3.7.0',
 'python_version': '3.7',
 'sys_platform': 'darwin'}

Variáveis ​​de ambiente do sistema:

• Apple_PubSub_Socket_Render
• COLORFGBG
• COLORTERM
• COMMAND_MODE
• COPYFILE_DISABLE
• EDITOR
• GO111MODULE
• GOPATH
• HOME
• HOMEBREW_GITHUB_API_TOKEN
• ITERM_PROFILE
• ITERM_SESSION_ID
• LANG
• LC_ALL
• LOGNAME
• PAGER
• PATH
• PIPENV_ACTIVE
• PIP_PYTHON_PATH
• PIP_SHIMS_BASE_MODULE
• PWD
• PYTHONDONTWRITEBYTECODE
• SECURITYSESSIONID
• SHELL
• SHLVL
• SSH_AUTH_SOCK
• TERM
• TERM_PROGRAM
• TERM_PROGRAM_VERSION
• TERM_SESSION_ID
• TMPDIR
• TMUX
• TMUX_PANE
• TMUX_PLUGIN_MANAGER_PATH
• USER
• VIRTUAL_ENV
• XPC_FLAGS
• XPC_SERVICE_NAME
• _OLD_FISH_PROMPT_OVERRIDE
• _OLD_VIRTUAL_PATH
• __CF_USER_TEXT_ENCODING
• __pipenv_fish_initial_pwd

Variáveis ​​de ambiente específicas do Pipenv:

• PIPENV_ACTIVE : 1

Variáveis ​​de ambiente específicas de depuração:

• PATH : /Users/jacobhayes/.local/share/virtualenvs/yay-vfCSW5aP/bin:/Users/jacobhayes/bin:/Users/jacobhayes/bin:/Users/jacobhayes/bin:/usr/local/Caskroom/google-cloud-sdk/latest/google-cloud-sdk/bin:/Users/jacobhayes/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
• SHELL : /usr/local/bin/fish
• EDITOR : nvim
• LANG : en_US.UTF-8
• PWD : /Users/jacobhayes/src/github.com/JacobHayes/dockerfiles/yay
• VIRTUAL_ENV : /Users/jacobhayes/.local/share/virtualenvs/yay-vfCSW5aP

Conteúdo de Pipfile ('/Users/jacobhayes/src/github.com/JacobHayes/dockerfiles/yay/Pipfile'):

[packages]
apache-airflow = {editable = true, git = "https://github.com/apache/incubator-airflow.git"}

[requires]
python_version = "3.7"

Conteúdo de Pipfile.lock ('/Users/jacobhayes/src/github.com/JacobHayes/dockerfiles/yay/Pipfile.lock'):

{
    "_meta": {
        "hash": {
            "sha256": "4fe62ca4ea8f5d57635a26fba05110d9a5301d8aa69f2aebc8d1c7be6738e37b"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "3.7"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.org/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "apache-airflow": {
            "editable": true,
            "git": "https://github.com/apache/incubator-airflow.git",
            "ref": "cdbdcae7c0645ac2987360fced43407202716b99"
        }
    },
    "develop": {}
}