fix: fix the incorrect priority for binary wheels

Fix #1698

news/1698.bugfix.md

@@ -0,0 +1 @@
+Fix a bug that built wheels are prioritized over source distributions with higher version number.

src/pdm/models/candidates.py

@@ -100,11 +100,11 @@ def attempt_to_find() -> Link | None:
     found = attempt_to_find()
     if ignore_compatibility and (found is None or not found.is_wheel):
         # try to find a wheel for easy metadata extraction
-        finder.ignore_compatibility = finder.prefer_binary = True
+        finder.ignore_compatibility = True
         new_found = attempt_to_find()
         if new_found is not None:
             found = new_found
-        finder.ignore_compatibility = finder.prefer_binary = False
+        finder.ignore_compatibility = False
     return found
 
 

src/pdm/models/environment.py

@@ -69,6 +69,14 @@ def _replace_shebang(contents: bytes, new_executable: bytes) -> bytes:
         return contents.replace(match.group(1), new_executable, 1)
 
 
+class PackageFinder(unearth.PackageFinder):
+    def _sort_key(self, package: unearth.Package) -> tuple:
+        key = super()._sort_key(package)
+        *front, last = key
+        # prefer wheel if all others are equal
+        return (*front, package.link.is_wheel, last)
+
+
 class Environment:
     """Environment dependent stuff related to the selected Python interpreter."""
 
@@ -166,13 +174,12 @@ def get_finder(
         index_urls, find_links, trusted_hosts = get_index_urls(sources)
 
         session = self._build_session(index_urls, trusted_hosts)
-        finder = unearth.PackageFinder(
+        finder = PackageFinder(
             session=session,
             index_urls=index_urls,
             find_links=find_links,
             target_python=self.target_python,
             ignore_compatibility=ignore_compatibility,
-            prefer_binary=ignore_compatibility,
             no_binary=os.getenv("PDM_NO_BINARY", "").split(","),
             only_binary=os.getenv("PDM_ONLY_BINARY", "").split(","),
             respect_source_order=self.project.pyproject.settings.get(