Merge pull request #4739 from mwichmann/doc/configure

Update Configure docs, again

Author: bdbaddog

CHANGES.txt

@@ -146,6 +146,7 @@ RELEASE  VERSION/DATE TO BE FILLED IN LATER
     - Fix a test problem on Windows where UNC tests failed due to incorrect
       path munging if a non-default %TEMP% was defined (as in moving to
       a Dev Drive). Also some cleanup.
+    - Improve the wording of Configure methods.
 
 
 RELEASE 4.9.1 -  Thu, 27 Mar 2025 11:40:20 -0700

RELEASE.txt

@@ -124,6 +124,8 @@ DOCUMENTATION
   as returning None.  It is now explicit that the path is returned if
   running in a virtualenv, and an empty (falsy) string if not.
 
+- Improve the wording of Configure methods.
+
 DEVELOPMENT
 -----------
 

SCons/Node/__init__.py

@@ -560,6 +560,12 @@ class Node(metaclass=NoSlotsPyPy):
                  '_func_target_from_source']
 
     class Attrs:
+        """A generic place to store extra information about the Node.
+
+        Defines ``__slots__`` for performance, but different consumers
+        define their own attributes, so to avoid having to collect them
+        all here, we add a ``__dict__`` slot to get dynamic attributes.
+        """
         __slots__ = ('shared', '__dict__')