Change to declarative setuptools config

[Ryan J Ollos]

First discussed in #13357.

• Use the ​declarative config
• Add ​python_requires
• Require setuptools >= 30.3

This might be a good time to remove the ​deprecated test command.

[Ryan J Ollos]

Proposed changes in log:rjollos.git:t13359_declarative_setuptools_config.

To check equivalence, I unzipped and diff'ed the wheel created before/after the changes. A concise summary is generated by ​pypi:wheel-inspect:

Trac-1.5.3.

@@ -452 +452 @@
                 "length": 899
             },
             "download_url": "https://trac.edgewall.org/wiki/TracDownload",
-            "home_page": "https://trac.edgewall.org/",
+            "home_page": "https://trac.edgewall.org",
             "license": "BSD",
             "metadata_version": "2.1",
             "name": "Trac",
@@ -472 +472 @@
                     "extras": [],
                     "marker": null,
                     "name": "setuptools",
-                    "specifier": ">5.6",
+                    "specifier": ">=30.3",
                     "url": null
                 },
                 {
@@ -539 +539 @@
                     "url": null
                 }
             ],
+            "requires_python": ">=3.5",
             "summary": "Integrated SCM, wiki, issue tracker and project environment",
             "version": "1.5.3.dev0"
         },
@@ -4115 +4116 @@
             },
             {
                 "digests": {
-                    "sha256": "pTK-0QyUkzh54loMrHQKJZA6LF6zCS6vxgcUMgyWOMk"
+                    "sha256": "Sl7uoUiWszsh6TV9WIEi1Rkmjqw9De7PhIM-B-nZw0w"
                 },
                 "path": "Trac-1.5.3.dev0.dist-info/METADATA",
-                "size": 2370
+                "size": 2394
             },
             {
                 "digests": {
@@ -4129 +4130 @@
             },
             {
                 "digests": {
-                    "sha256": "gVhSnOaDWVjN6Vc7VAMUoYetLXG22sezdpJwCXOjzeY"
+                    "sha256": "NWf-LY28PDJkF_evIufkU4s5x8ZLXw54msCRHVHj1TA"
                 },
                 "path": "Trac-1.5.3.dev0.dist-info/entry_points.txt",
-                "size": 2421
+                "size": 2045
             },
             {
                 "digests": {
@@ -4170 +4171 @@
     },
     "file": {
         "digests": {
-            "md5": "8cd505057de1c96599be7998feb86623",
-            "sha256": "ca881d774ad7871d6d145b3fd16ad074d024aec87b2f18e597b35d082c43cd90"
+            "md5": "bde0e9a8d8ec91337a51f5ce26b0f169",
+            "sha256": "708fef90353db3378d2f94ae7dc70c8d2c6f824e0c15d85549b53a19f9c1c582"
         },
-        "size": 2792139
+        "size": 2792129
     },
     "filename": "Trac-1.5.3.dev0-py3-none-any.whl",
     "project": "Trac",

[Ryan J Ollos]

Committed in r17509.