Author names with commas result in invalid PKG-INFO Author-Email field

[vbaltrusaitis-reef]

• I have searched the issue tracker and believe that this is not a duplicate.

Steps to reproduce

1. Run:

mkdir author-name-bug-demo
cd author-name-bug-demo
pdm init --dist --non-interactive

2. Edit pyproject.toml, replace authors table with [{name = "Company, Inc.", email = "[email protected]"}]

3. Run:

pdm build
cd dist
tar xf author_name_bug_demo-0.1.0.tar.gz

Actual behavior

The resulting file author_name_bug_demo-0.1.0/PKG-INFO will have this line:

Author-Email: Company, Inc. <[email protected]>

This field does not conform to Author-Email field specification as per https://packaging.python.org/en/latest/specifications/core-metadata/#author-email .

Uploading the built packages to PyPI fails.

Expected behavior

in PKG-INFO, Company, Inc should be quoted:

Author-Email: "Company, Inc." <[email protected]>

Environment Information

PDM version:
  2.12.3
Python Interpreter:
  /home/vbr/tmp/author-name-bug-demo/.venv/bin/python (3.12)
Project Root:
  /home/vbr/tmp/author-name-bug-demo
Local Packages:
  
{
  "implementation_name": "cpython",
  "implementation_version": "3.12.0",
  "os_name": "posix",
  "platform_machine": "x86_64",
  "platform_release": "6.5.11-300.fc39.x86_64",
  "platform_system": "Linux",
  "platform_version": "#1 SMP PREEMPT_DYNAMIC Wed Nov  8 22:37:57 UTC 2023",
  "python_full_version": "3.12.0",
  "platform_python_implementation": "CPython",
  "python_version": "3.12",
  "sys_platform": "linux"
}

[rooterkyberian]

seems like bug is in vendored package;

submitted fix upstream pypa/pyproject-metadata#87 so after it gets merged it is a matter of updating vendored package - which seems pretty out of date ATM