FTR, here is a link to thread: http://mail.python.org/pipermail/idle-dev/2013-April/003254.html.
There's also a follow-up issue with a patch: #17776.

http://mail.python.org/pipermail/idle-dev/2013-April/003258.html also has a list of reasons to avoid internationalization, and 4 is one of the main reasons I'm against it.
Students already have to learn several English words anyway (e.g. keywords like if, else, for, while, class, try, except, finally, break, continue, etc.; functions like all, any, print, input, range, sorted, reversed, etc.; "concepts" like classes, functions, methods, variables, attributes, etc.).  Adding a few more (open, close, save, exit, cut, copy, paste, find, etc.) is not going to make a lot of difference anyway.