Change keywords field to be comma separated

With a note about the change. Discussion on distutils-sig: https://mail.python.org/archives/list/distutils-sig@python.org/thread/LFTLGMIIB5PRG7NUUIGGGX4COGX53DMR/
pypa · Nov 19, 2019 · e2b5a3b · e2b5a3b
1 parent 47bccfc
commit e2b5a3b
Showing 1 changed file with 10 additions and 3 deletions.
diff --git a/source/specifications/core-metadata.rst b/source/specifications/core-metadata.rst
@@ -268,12 +268,19 @@ Keywords
 
 .. versionadded:: 1.0
 
-A list of additional keywords to be used to assist searching
-for the distribution in a larger catalog.
+A list of additional keywords, separated by commas, to be used to assist
+searching for the distribution in a larger catalog.
 
 Example::
 
-    Keywords: dog puppy voting election
+    Keywords: dog,puppy,voting,election
+
+.. note::
+
+   The specification previously showed keywords separated by spaces,
+   but distutils and setuptools implemented it with commas.
+   These tools have been very widely used for many years, so it was
+   easier to update the specification to match the de facto standard.
 
 .. _home-page-optional: