Improve backwards compatibility code to handle True/False.

9179e89b · Raymond Hettinger · 5fb7a483 · 9179e89b
Commit 9179e89b authored Nov 12, 2003 by Raymond Hettinger
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Lib/sets.py Lib/sets.py +4 -0

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--- a/Lib/sets.py
+++ b/Lib/sets.py
@@ -73,6 +73,10 @@ except ImportError:
        for x in iterable:
            if not predicate(x):
                yield x
+    try:
+        True, False
+    except NameError:
+        True, False = (0==0, 0!=0)

 __all__ = ['BaseSet', 'Set', 'ImmutableSet']