Now that I've learnt about structseq objects I felt like converting sys.float_info to a structseq. It's
readonly and help(sys.float_info) explains the attributes nicely.
diff --git a/Misc/NEWS b/Misc/NEWS
index 76104c0..0ef721f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@
Core and builtins
-----------------
+- sys.float_info / PyFloat_GetInfo: The floating point information
+ object was converted from a dict to a specialized structseq object.
+
- Patch #1816: Added sys.flags structseq. It exposes the status of most
command line arguments and PYTHON* environment variables.