[2.7] bpo-33503: Fix the broken pypi link in the source and the documentation (GH-6814). (GH-6905)

(cherry picked from commit 19177fbd5d6d9b29ccc302d65f9d9417ece082ce)

Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
diff --git a/Doc/distutils/setupscript.rst b/Doc/distutils/setupscript.rst
index 6b82c40..92ab573 100644
--- a/Doc/distutils/setupscript.rst
+++ b/Doc/distutils/setupscript.rst
@@ -606,7 +606,7 @@
 (4)
     These fields should not be used if your package is to be compatible with Python
     versions prior to 2.2.3 or 2.3.  The list is available from the `PyPI website
-    <https://pypi.python.org/pypi>`_.
+    <https://pypi.org>`_.
 
 (5)
     The ``long_description`` field is used by PyPI when you are