Additional PEP 8 tweaks

- be explicit that project style guides take precedence
- make a line splitting example consistent with other guidelines
- clarify wording of the def-vs-lambda guideline

pep-0008.txt

@@ -28,6 +28,10 @@ This style guide evolves over time as additional conventions are
 identified and past conventions are rendered obsolete by changes in
 the language itself.
 
+Many projects incorporate this guide by reference into their own style
+guides. In the event of any conflicts, the project-specific style guide
+takes precedence.
+
 
 A Foolish Consistency is the Hobgoblin of Little Minds
 ======================================================
@@ -882,8 +886,8 @@ Programming Recommendations
   operator.  However, it is best to implement all six operations so
   that confusion doesn't arise in other contexts.
 
-- Always use a def statement instead of assigning a lambda expression
+- Always use a def statement instead of an assignment statement that binds
-  to a name.
+  a lambda expression directly to a name.
 
   Yes::