Fix TestAddAuthor.test_append: unwrap tomlkit Array to plain dicts in add_author

Copilot · nathanjmcdougall · Copilot · commit f00ffcbda81a · 2026-03-27T10:41:21.000Z
The in-place Array modification in extend_list now preserves the tomlkit Array type. The add_author delete/re-set dance needs plain Python dicts to trigger tomlkit's format conversion to [[project.authors]]. Agent-Logs-Url: https://github.com/usethis-python/usethis-python/sessions/6a19efab-dd8b-4ba2-ae5e-1f9670293228 Co-authored-by: nathanjmcdougall <18602289+nathanjmcdougall@users.noreply.github.com>
diff --git a/src/usethis/_core/author.py b/src/usethis/_core/author.py
@@ -29,7 +29,9 @@ def add_author(
 
         # Moving the authors list to the end of the project table to avoid a bug in tomlkit
         # Suspected to be similar to this https://github.com/python-poetry/tomlkit/issues/381
-        full = PyprojectTOMLManager()[["project", "authors"]]
+        full_raw = PyprojectTOMLManager()[["project", "authors"]]
+        assert isinstance(full_raw, list)
+        full = [dict(item) for item in full_raw]
         del PyprojectTOMLManager()[["project", "authors"]]
         PyprojectTOMLManager()[["project", "authors"]] = full
     else:
diff --git a/tests/usethis/_core/test_author.py b/tests/usethis/_core/test_author.py
@@ -58,7 +58,6 @@ def test_append(self, tmp_path: Path):
         assert (tmp_path / "pyproject.toml").read_text() == (
             """\
 
-
 [[project.authors]]
 name = "First Contributor"
 [[project.authors]]
