You are asking a community of users about Apple Store policies? Not a move calculated to get you the most pertinent and up-to-date info, methinks.
Do you need to buy in the US, or pay with money from a US account?
If the former, go to the online US Apple Store and check out their shipping policy. If they don't ship overseas, you'll have to take care of shipping. It's less than ideal, because of possible customs complications.
If the latter, go to the online France store, and check out if they accept some form of international payment you can use. You'll get no break from the banks on the exchange rate, but, if the MBP is going to be used in France or elsewhere in EU, it's the better solution, and you avoid shipping and customs issues.