[Chicago] exec saved compiled code

[Massimo Di Pierro]

Hello,

I am hoping one of you can help me with this.

EXAMPLE:

environment={'x':3}
open('a.py','w').write('print x')
import py_compile,os
exec(open('a.py','r').read()) in environment ### prints 3 OK!
py_compile.compile('a.py')
os.unlink('a.py')
exec(open('a.pyc','r').read()) in environment ### does not work

QUESTION: how do exec a.pyc into environment so that it prints 3? Is  
it possible to do it?

Massimo