Added a proper random.choice implementation that works with non-sequence iterables.

src/fix.py

@@ -33,6 +33,8 @@
 Fixes stuff that Python should have but doesn't.
 """
 
+from __future__ import division
+
 __revision__ = "$Id$"
 
 __all__ = []
@@ -44,6 +46,21 @@ import new
 import string
 string.ascii = string.maketrans('', '')
 
+import random
+_choice = random.choice
+def choice(iterable):
+    if isinstance(iterable, list):
+        return _choice(iterable)
+    else:
+        n = 1
+        ret = None
+        for x in iterable:
+            if random.random() < 1/n:
+                ret = x
+            n += 1
+        return ret
+random.choice = choice
+
 curry = new.instancemethod
 
 def ignore(*args, **kwargs):