27656 enumerate does not support start=

30143 import of installed module broken in 2.7B2
28193 Implement thread._count
29914 Crazy bug: dict(o=0) fails, dict(a=0) or any other small letter succeedes
27150 Non-Nullable property being set to None causes continuous execution and high CPU usage!
30022 Wrong integer coercion
29377 Formatting large longs takes an unreasonable amount of time
   we're still slower than CPython but much faster for the common cases now
28312
   Fix variable scoping with dict/set comprehensions