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Pipenv：「NoneType」物件不可下標

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Pipenv：「NoneType」物件不可下標

我使用以下命令安裝環境管彭夫。 Python3.7.4。

關於系統：

$ uname -a
Linux *** 4.19.0-5-amd64 #1 SMP Debian 4.19.37-6 (2019-07-18) x86_64 GNU/Linux

文件.env

WORKON_HOME=/usr/local/envs
PIPENV_DEFAULT_PYTHON_VERSION=3.7.4

紀錄

Loading .env environment variables…
Creating a virtualenv for this project…
Using /usr/bin/python3 (3.7.4) to create virtualenv…
⠋/usr/bin/python3: No module named pipenv.pew

Virtualenv location:
requirements.txt found, instead of Pipfile! Converting…
Traceback (most recent call last):
  File "/usr/bin/pipenv", line 11, in <module>
    load_entry_point('pipenv==11.9.0', 'console_scripts', 'pipenv')()
  File "/usr/lib/python3/dist-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3/dist-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/lib/python3/dist-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3/dist-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/lib/python3/dist-packages/pipenv/cli.py", line 572, in shell
    three=three, python=python, fancy=fancy, shell_args=shell_args
  File "/usr/lib/python3/dist-packages/pipenv/core.py", line 2093, in do_shell
    ensure_project(three=three, python=python, validate=False)
  File "/usr/lib/python3/dist-packages/pipenv/core.py", line 636, in ensure_project
    ensure_pipfile(validate=validate, skip_requirements=skip_requirements)
  File "/usr/lib/python3/dist-packages/pipenv/core.py", line 265, in ensure_pipfile
    project.create_pipfile(python=python)
  File "/usr/lib/python3/dist-packages/pipenv/project.py", line 518, in create_pipfile
    'python_version': python_version(required_python)[: len('2.7')]
TypeError: 'NoneType' object is not subscriptable

使用指令安裝 pipelinev

sudo apt install python3-pipenv

我嘗試使用 Python 版本運行：在文件.env和命令列參數中 - 這個結果重複了。在 StaсkOverflow 上有一個類似的問題，但解決方案不適合我。我對語言環境沒有任何問題。

答案1

老問題，但這也許可以幫助像我這樣遇到這個問題的人：

我能夠透過使用來避免這個問題python3 -m pipenv。

就我而言，我的 PATH 中沒有安裝 Python 2，也沒有python可執行檔。為了解決這個問題，我創建了一個符號連結：

# find location of python3
$ which python3
/usr/bin/python3

# create link from python to python3 in the original directory
$ ln -s /usr/bin/python3 /usr/bin/python

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