Issue 21241: Variable name with number causes interactive console to crash

Executing in the interactive console: "foo1 = 0" and then "foo1" gives "Segmentation Fault: 11" on OS X 10.9.2, Python 3.3.2 (v3.3.2:d047928ae3f6, May 13 2013, 13:52:24) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]

If foo1 is defined in a program, and interactive mode is entered, assigning a value to it seg faults the console as well, but executing "foo1" *does* work.

It does not seem to crash problems on my friends PC (running Ubuntu).