Merge pull request #1766 from venthur/fix/1756

Force metadata-version = 1.2 when project urls are present.

changelog.d/1756.change.rst

+Forse metadata-version >= 1.2. when project urls are present.

setuptools/dist.py

@@ -54,7 +54,8 @@ def get_metadata_version(self):
             mv = StrictVersion('2.1')
         elif (self.maintainer is not None or
               self.maintainer_email is not None or
-              getattr(self, 'python_requires', None) is not None):
+              getattr(self, 'python_requires', None) is not None or
+              self.project_urls):
             mv = StrictVersion('1.2')
         elif (self.provides or self.requires or self.obsoletes or
                 self.classifiers or self.download_url):

setuptools/tests/test_egg_info.py

@@ -622,6 +622,7 @@ class TestEggInfo:
         assert expected_line in pkg_info_lines
         expected_line = 'Project-URL: Link Two, https://example.com/two/'
         assert expected_line in pkg_info_lines
+        assert 'Metadata-Version: 1.2' in pkg_info_lines
 
     def test_python_requires_egg_info(self, tmpdir_cwd, env):
         self._setup_script_with_requires(