Installing editable dependency in empty dir gives unhelpful message

[frostming]

Issue description

On master branch, pipenv install -e ${package} in empty directory gives error.
2018.10.13 is fine.
Incomplete implementation of #2846

Expected result

Pipfile and virtualenv are created automatically and editable package is installed successfully.

Actual result

$ pipenv install -e click
Traceback (most recent call last):
  File "/Users/fming/.local/share/virtualenvs/pipenv-46tK8lkP/bin/pipenv", line 11, in <module>
    load_entry_point('pipenv', 'console_scripts', 'pipenv')()
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/decorators.py", line 64, in new_func
    return ctx.invoke(f, obj, *args, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/cli/command.py", line 249, in install
    editable_packages=state.installstate.editables,
  File "/Users/fming/wkspace/github/pipenv/pipenv/core.py", line 1698, in do_install
    raise exceptions.PipfileNotFound(project.pipfile_location)
  File "/Users/fming/wkspace/github/pipenv/pipenv/exceptions.py", line 149, in __init__
    super(PipfileNotFound, self).__init__(filename, message=fix_utf8(message), extra=extra, **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/exceptions.py", line 126, in __init__
    FileError.__init__(self, filename=filename, hint=fix_utf8(message), **kwargs)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/exceptions.py", line 213, in __init__
    ui_filename = filename_to_ui(filename)
  File "/Users/fming/wkspace/github/pipenv/pipenv/vendor/click/_compat.py", line 453, in filename_to_ui
    value = value.encode('utf-8', 'surrogateescape') \
AttributeError: 'NoneType' object has no attribute 'encode'

Steps to replicate

Provide the steps to replicate (which usually at least includes the commands and the Pipfile).

$ mkdir empty_dir && cd empty_dir
$ pipenv install -e click

---

Please run $ pipenv --support, and paste the results here. Don't put backticks (`) around it! The output already contains Markdown formatting.

If you're on macOS, run the following:

$ pipenv --support | pbcopy

If you're on Windows, run the following:

> pipenv --support | clip

If you're on Linux, run the following:

$ pipenv --support | xclip

$ pipenv --support

Pipenv version: '2018.10.14.dev0'

Pipenv location: '/Users/fming/wkspace/github/pipenv/pipenv'

Python location: '/Users/fming/.local/share/virtualenvs/pipenv-46tK8lkP/bin/python'

Python installations found:

• 3.7.0: /Users/fming/.local/share/virtualenvs/pipenv-46tK8lkP/bin/python3
• 3.7.0: /Users/fming/Library/PythonUp/bin/python3
• 3.7.0: /Users/fming/Library/PythonUp/bin/python3.7m
• 3.7.0: /usr/local/bin/python3
• 3.7.0: /usr/local/bin/python3.7m
• 2.7.15: /Users/fming/Library/PythonUp/cmd/python2.7
• 2.7.10: /usr/bin/python
• 2.7.10: /usr/bin/pythonw
• 2.7.10: /usr/bin/python2.7

PEP 508 Information:

{'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'}

System environment variables:

• TERM_SESSION_ID
• SSH_AUTH_SOCK
• Apple_PubSub_Socket_Render
• COLORFGBG
• ITERM_PROFILE
• SQLITE_EXEMPT_PATH_FROM_VNODE_GUARDS
• XPC_FLAGS
• PWD
• SHELL
• SECURITYSESSIONID
• TERM_PROGRAM_VERSION
• TERM_PROGRAM
• PATH
• DISPLAY
• COLORTERM
• COMMAND_MODE
• TERM
• HOME
• TMPDIR
• USER
• XPC_SERVICE_NAME
• LOGNAME
• __CF_USER_TEXT_ENCODING
• ITERM_SESSION_ID
• SHLVL
• OLDPWD
• ZSH
• PAGER
• LESS
• LSCOLORS
• PROMPT_EOL_MARK
• GOPATH
• GPG_TTY
• PYTHONDONTWRITEBYTECODE
• PIP_SHIMS_BASE_MODULE
• PIP_PYTHON_PATH
• HELLO
• PIPENV_ACTIVE
• VIRTUAL_ENV
• PS1
• LANG
• LC_ALL
• _
• PIP_DISABLE_PIP_VERSION_CHECK
• PYTHONFINDER_IGNORE_UNSUPPORTED

Pipenv–specific environment variables:

• PIPENV_ACTIVE: 1

Debug–specific environment variables:

• PATH: /Users/fming/.local/share/virtualenvs/pipenv-46tK8lkP/bin:/Users/fming/wkspace/go/bin:/Users/fming/Library/PythonUp/bin:/Users/fming/Library/PythonUp/cmd:/Users/fming/.local/bin:/Users/fming/wkspace/go/bin:/Users/fming/Library/PythonUp/bin:/Users/fming/Library/PythonUp/cmd:/Users/fming/.local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/aria2/bin:/usr/local/MacGPG2/bin:/opt/X11/bin
• SHELL: /bin/zsh
• LANG: zh_CN.UTF-8
• PWD: /Users/fming/wkspace/github/tempnew
• VIRTUAL_ENV: /Users/fming/.local/share/virtualenvs/pipenv-46tK8lkP

---

[frostming]

Closed via #3207