Fix error in examples pointed out by Nicco Kunzmann and mention Haskell influence

pep-3150.txt

@@ -36,9 +36,10 @@ replacing other techniques that achieve the same effect (such as the "default
 argument hack").
 
 The specific proposal in this PEP has been informed by various explorations
-of this and related concepts over the years (e.g. [1], [2], [3], [6]). It avoids
-some pitfalls that have been encountered in the past, but has not yet itself
-been subject to the test of implementation.
+of this and related concepts over the years (e.g. [1], [2], [3], [6]), and is
+inspired to some degree by the ``where`` and ``let`` clauses in Haskell. It
+avoids some problems that have been identified in past proposals, but has not
+yet itself been subject to the test of implementation.
 
 
 PEP Deferral
@@ -363,7 +364,7 @@ behaviour is desired::
     def f():
       return i
     seq.append(f)
-  assert seq == [9]*10
+  assert [f() for f in seq] == [9]*10
 
   # Current Python (early binding via default argument hack)
   seq = []
@@ -371,7 +372,7 @@ behaviour is desired::
     def f(_i=i):
       return i
     seq.append(f)
-  assert seq == list(range(10))
+  assert [f() for f in seq] == list(range(10))
 
   # Early binding via given clause
   seq = []
@@ -379,7 +380,7 @@ behaviour is desired::
     seq.append(f) given:
       def f():
         return i
-  assert seq == list(range(10))
+  assert [f() for f in seq] == list(range(10))
 
 Note that the current intention is for the copy-in/copy-out semantics to
 apply only to names defined in the local scope containing the ``given``