Issue #15166: Re-implement imp.get_tag() using sys.implementation.
Also eliminates some C code in Python/import.c as well.
Patch by Eric Snow with verification by comparing against another
patch from Jeff Knupp.
diff --git a/Misc/NEWS b/Misc/NEWS
index 8c4aad2..cba8c41 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -17,6 +17,8 @@
Library
-------
+- Issue #15166: Implement imp.get_tag() using sys.implementation.cache_tag.
+
- Issue #15210: Catch KeyError when imprortlib.__init__ can't find
_frozen_importlib in sys.modules, not ImportError.