refactor: set default formats for includes in Factory

src/poetry/core/factory.py

@@ -367,10 +367,18 @@ def _configure_package_poetry_specifics(
             package.build_config = build or {}
 
         if includes := tool_poetry.get("include"):
-            package.include = [
-                include if isinstance(include, dict) else {"path": include}
-                for include in includes
-            ]
+            includes_ = []
+            for include in includes:
+                if not isinstance(include, dict):
+                    include = {"path": include}
+
+                formats = include.get("format", ["sdist"])
+                if not isinstance(formats, list):
+                    formats = [formats]
+
+                includes_.append({**include, "format": formats})
+
+            package.include = includes_
 
         if exclude := tool_poetry.get("exclude"):
             package.exclude = exclude

src/poetry/core/masonry/builders/builder.py

@@ -48,21 +48,15 @@ def _module(self) -> Module:
 
         packages: list[dict[str, str | dict[str, str]]] = []
         includes: list[dict[str, str | dict[str, str]]] = []
-        for source_list, target_list, default in [
-            (self._package.packages, packages, ["sdist", "wheel"]),
-            (self._package.include, includes, ["sdist"]),
+        for source_list, target_list in [
+            (self._package.packages, packages),
+            (self._package.include, includes),
         ]:
             for item in source_list:
-                # Default to including in both sdist & wheel
-                # if the `format` key is not provided.
-                formats = item.get("format", default)
-                if not isinstance(formats, list):
-                    formats = [formats]
-
-                if self.format and self.format not in formats:
+                if self.format and self.format not in item["format"]:
                     continue
 
-                target_list.append({**item, "format": formats})
+                target_list.append({**item})
 
         return Module(
             self._package.name,

tests/test_factory.py

@@ -376,7 +376,7 @@ def test_create_poetry_with_packages_and_includes() -> None:
 
     assert package.include == [
         {"path": "extra_dir/vcs_excluded.py", "format": ["sdist", "wheel"]},
-        {"path": "notes.txt"},
+        {"path": "notes.txt", "format": ["sdist"]},
     ]