[pypy-commit] pypy default: reverted 2.7 {k for k ...} set syntax to an explicit for loop + set init. (s390x machine only has cpython 2.6 installed)

[plan_rich]

Author: Richard Plangger <planrichi at gmail.com>
Branch: 
Changeset: r80844:95fa20db8791
Date: 2015-11-23 08:22 +0100
http://bitbucket.org/pypy/pypy/changeset/95fa20db8791/

Log:	reverted 2.7 {k for k ...} set syntax to an explicit for loop + set
	init. (s390x machine only has cpython 2.6 installed)

diff --git a/rpython/annotator/model.py b/rpython/annotator/model.py
--- a/rpython/annotator/model.py
+++ b/rpython/annotator/model.py
@@ -461,7 +461,10 @@
 
     def intersection(self, other):
         assert isinstance(other, SomeExceptCase)
-        classdefs = {c for c in self.classdefs if c.issubclass(other.case)}
+        classdefs = set()
+        for c in self.classdefs:
+            if c.issubclass(other.case):
+                classdefs.add(c)
         if classdefs:
             return SomeException(classdefs)
         else:
@@ -469,7 +472,10 @@
 
     def difference(self, other):
         assert isinstance(other, SomeExceptCase)
-        classdefs = {c for c in self.classdefs if not c.issubclass(other.case)}
+        classdefs = set()
+        for c in self.classdefs:
+            if not c.issubclass(other.case):
+                classdefs.add(c)
         if classdefs:
             return SomeException(classdefs)
         else: