Linguistic challenge: name this program

In 1981, Richard Pattis wrote a delightful little book titled "Karel the Robot, a Gentle Introduction to the Art of Programming." Pattis's "Karel the Robot" was named after the author Karel Capek, who popularized the word "robot" in his play "Rossum's Universal Robots". Pattis's approach was to int

exec and global puzzle

I have the following two files: #--testexec.py-- def exec_code(co): try: exec co except: print "error" #-- test.py-- import thread import testexec import time code = "def a():\n print 'a'\n\n" +\ "def c():\n a()\n\nc()" code2 = "def a():\n print 'a'\n\n" +\