如何在 mac 上使用 pipenv？

Question

当通过 pip（ pip install pipenv ）安装它时，在 zsh shell 上找不到命令pipenv 。

如果通过brew安装它： brew install pipenv ，然后运行pipenv shell ，得到错误

Loading .env environment variables...
Launching subshell in virtual environment...
Traceback (most recent call last):
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/bin/pipenv", line 8, in <module>
    sys.exit(cli())
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/decorators.py", line 73, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/cli/command.py", line 429, in shell
    do_shell(
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/core.py", line 2387, in do_shell
    shell.fork_compat(*fork_args)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/shells.py", line 106, in fork_compat
    c = pexpect.spawn(self.cmd, ["-i"], dimensions=(dims.lines, dims.columns))
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/pexpect/pty_spawn.py", line 205, in __init__
    self._spawn(command, args, preexec_fn, dimensions)
  File "/usr/local/Cellar/pipenv/2020.11.15/libexec/lib/python3.9/site-packages/pipenv/vendor/pexpect/pty_spawn.py", line 276, in _spawn
    raise ExceptionPexpect('The command was not found or was not ' +
pipenv.vendor.pexpect.exceptions.ExceptionPexpect: The command was not found or was not executable: /use/bin/zsh.

没有路径命名/use/bin/zsh 。 为什么不稳定？

shell 路径是

echo $SHELL
/bin/zsh

Answer 1

你问了两个问题，真的。 我将在单独的部分中回答每个问题：

如何修复该错误

Loading.env environment variables... ... The command was not found or was not executable: /use/bin/zsh.

看起来在您的.env文件中，您有PIPENV_SHELL=/use/bin/zsh 。 这是不正确的。 反而，

• 它应该是

  PIPENV_SHELL=/bin/zsh

• 或者干脆

  PIPENV_SHELL=zsh

• 或者你可以删除它。 然后pipenv shell将自动使用与您调用它相同的 shell 。

如何在 macOS 上正确安装pipenv

在 macOS 上安装pipenv的正确方法很复杂，但这是在升级 Python 时避免遇到麻烦的唯一方法：

0. 撤消到目前为止所做的事情：

    % pip uninstall pipenv % brew uninstall pipenv

1. 将以下内容添加到您的.zshrc文件中：

    eval "$( brew shellenv )" # Set your preferred Python version. export PYENV_VERSION=3.10.5 export PIPX_BIN_DIR=~/.local/bin export PYENV_ROOT=~/.pyenv # -U eliminates duplicates. export -U PATH path path=( $PIPX_BIN_DIR $PYENV_ROOT/{bin,shims} $path )

2. 在命令行上执行以下操作：

    % exec zsh # Restart zsh % brew install pyenv % pyenv install $PYENV_VERSION # Install your preferred Python % pyenv global $PYENV_VERSION # Make it your default Python % pip install -U pip # Update pip % pip install -U --user pipx # Install pipx into ~/.local/bin % pipx install pipenv # pipx is like brew but for Python executables

3. 将以下内容添加到您的.zshrc文件中：

    eval "$( pyenv init - )" eval "$( pip completion --zsh )" eval "$( register-python-argcomplete pipx )" eval "$( pipenv --completion )"

4. 再次运行exec zsh （或打开一个新的终端选项卡）以使上述生效。