Invalid author prevents package from being installed

[eblis]

• Poetry version: 1.1.12 and 1.2.2

• Python version: 3.9.13

• OS version and name: Windows Server 2016 x64

• I am on the latest stable Poetry version, installed using a recommended method.

• I have searched the issues of this repo and believe that this is not a duplicate.

• I have consulted the FAQ and blog for any relevant entries or release notes.

• [x If an exception occurs when executing a command, I executed it again in debug mode (-vvv option) and have included the output below.

Issue

If a package has an invalid author then the package cannot be installed by poetry.
I have a package that has the following author FirstName LastName firstname.lastname@company.com, it's missing the <, > characters from the email part, which prevents poetry from installing it.
Although the author is wrong it shouldn't really prevent the package from being installed, no ? Maybe it should report a warning or something, but continue.
Also, the package isn't reported, so you have no idea which package is the culprit.

  Stack trace:

  9  c:\program files\python39\lib\site-packages\clikit\console_application.py:131 in run
      129│             parsed_args = resolved_command.args
      130│
    → 131│             status_code = command.handle(parsed_args, io)
      132│         except KeyboardInterrupt:
      133│             status_code = 1

  8  c:\program files\python39\lib\site-packages\clikit\api\command\command.py:120 in handle
      118│     def handle(self, args, io):  # type: (Args, IO) -> int
      119│         try:
    → 120│             status_code = self._do_handle(args, io)
      121│         except KeyboardInterrupt:
      122│             if io.is_debug():

  7  c:\program files\python39\lib\site-packages\clikit\api\command\command.py:171 in _do_handle
      169│         handler_method = self._config.handler_method
      170│
    → 171│         return getattr(handler, handler_method)(args, io, self)
      172│
      173│     def __repr__(self):  # type: () -> str

  6  c:\program files\python39\lib\site-packages\cleo\commands\command.py:92 in wrap_handle
       90│         self._command = command
       91│
    →  92│         return self.handle()
       93│
       94│     def handle(self):  # type: () -> Optional[int]

  5  c:\program files\python39\lib\site-packages\poetry\console\commands\install.py:80 in handle
       78│
       79│         try:
    →  80│             builder = EditableBuilder(self.poetry, self._env, self._io)
       81│         except ModuleOrPackageNotFound:
       82│             # This is likely due to the fact that the project is an application

  4  c:\program files\python39\lib\site-packages\poetry\masonry\builders\editable.py:34 in __init__
       32│ class EditableBuilder(Builder):
       33│     def __init__(self, poetry, env, io):
    →  34│         super(EditableBuilder, self).__init__(poetry)
       35│
       36│         self._env = env

  3  c:\program files\python39\lib\site-packages\poetry\core\masonry\builders\builder.py:92 in __init__
       90│         )
       91│
    →  92│         self._meta = Metadata.from_package(self._package)
       93│
       94│     @property

  2  c:\program files\python39\lib\site-packages\poetry\core\masonry\metadata.py:60 in from_package
      58│         meta.keywords = ",".join(package.keywords)
      59│         meta.home_page = package.homepage or package.repository_url
    → 60│         meta.author = package.author_name
      61│         meta.author_email = package.author_email
      62│

  1  c:\program files\python39\lib\site-packages\poetry\core\packages\package.py:173 in author_name
      171│     @property
      172│     def author_name(self):  # type: () -> str
    → 173│         return self._get_author()["name"]
      174│
      175│     @property

  ValueError

  Invalid author string. Must be in the format: John Smith <john@example.com>

  at c:\program files\python39\lib\site-packages\poetry\core\packages\package.py:204 in _get_author
      200│
      201│         m = AUTHOR_REGEX.match(self._authors[0])
      202│
      203│         if m is None:
    → 204│             raise ValueError(
      205│                 "Invalid author string. Must be in the format: "
      206│                 "John Smith <john@example.com>"
      207│             )
      208│

[eblis]

I get the same error with Poetry 1.2.2

Stack trace:

  12  C:\Program Files\Python39\lib\site-packages\cleo\application.py:329 in run
       327│
       328│             try:
     → 329│                 exit_code = self._run(io)
       330│             except Exception as e:
       331│                 if not self._catch_exceptions:

  11  C:\Program Files\Python39\lib\site-packages\poetry\console\application.py:185 in _run
       183│         self._load_plugins(io)
       184│
     → 185│         exit_code: int = super()._run(io)
       186│         return exit_code
       187│

  10  C:\Program Files\Python39\lib\site-packages\cleo\application.py:423 in _run
       421│             io.input.set_stream(stream)
       422│
     → 423│         exit_code = self._run_command(command, io)
       424│         self._running_command = None
       425│

   9  C:\Program Files\Python39\lib\site-packages\cleo\application.py:465 in _run_command
       463│
       464│         if error is not None:
     → 465│             raise error
       466│
       467│         return event.exit_code

   8  C:\Program Files\Python39\lib\site-packages\cleo\application.py:449 in _run_command
       447│
       448│             if event.command_should_run():
     → 449│                 exit_code = command.run(io)
       450│             else:
       451│                 exit_code = ConsoleCommandEvent.RETURN_CODE_DISABLED

   7  C:\Program Files\Python39\lib\site-packages\cleo\commands\base_command.py:119 in run
       117│         io.input.validate()
       118│
     → 119│         status_code = self.execute(io)
       120│
       121│         if status_code is None:

   6  C:\Program Files\Python39\lib\site-packages\cleo\commands\command.py:83 in execute
        81│
        82│         try:
     →  83│             return self.handle()
        84│         except KeyboardInterrupt:
        85│             return 1

   5  C:\Program Files\Python39\lib\site-packages\poetry\console\commands\install.py:155 in handle
       153│
       154│         try:
     → 155│             builder = EditableBuilder(self.poetry, self.env, self.io)
       156│         except ModuleOrPackageNotFound:
       157│             # This is likely due to the fact that the project is an application

   4  C:\Program Files\Python39\lib\site-packages\poetry\masonry\builders\editable.py:47 in __init__
        45│ class EditableBuilder(Builder):
        46│     def __init__(self, poetry: Poetry, env: Env, io: IO) -> None:
     →  47│         super().__init__(poetry)
        48│
        49│         self._env = env

   3  C:\Program Files\Python39\lib\site-packages\poetry\core\masonry\builders\builder.py:90 in __init__
        88│         )
        89│
     →  90│         self._meta = Metadata.from_package(self._package)
        91│
        92│     @property

   2  C:\Program Files\Python39\lib\site-packages\poetry\core\masonry\metadata.py:66 in from_package
        64│         meta.keywords = ",".join(package.keywords)
        65│         meta.home_page = package.homepage or package.repository_url
     →  66│         meta.author = package.author_name
        67│         meta.author_email = package.author_email
        68│

   1  C:\Program Files\Python39\lib\site-packages\poetry\core\packages\package.py:172 in author_name
       170│     @property
       171│     def author_name(self) -> str | None:
     → 172│         return self._get_author()["name"]
       173│
       174│     @property

  ValueError

  Invalid author string. Must be in the format: John Smith <john@example.com>

  at C:\Program Files\Python39\lib\site-packages\poetry\core\packages\package.py:232 in _get_author
      228│
      229│         m = AUTHOR_REGEX.match(self._authors[0])
      230│
      231│         if m is None:
    → 232│             raise ValueError(
      233│                 "Invalid author string. Must be in the format: "
      234│                 "John Smith <john@example.com>"

[eblis]

The project i was actually working on didn't have a correct email address, which lead to the problem.
I was able to add the <> characters, but the error should at least report which package it's referring to. And ideally it shouldn't crash, just report the warning