Closed requested to merge bitbucket/declined-pr-254 into branch/py3.3
Created originally on Bitbucket by kiilerix (Mads Kiilerich)
Changesets for this Pull Request have not been imported, because it had been already declined on Bitbucket. Marked as closed by the import user.
Python 3 dis.py and opcode.py are "backported" as more or less trivial copies. This code duplication seems like the least intrusive solution.