Someone will come along who can ID the bike. It is a lovely old bike in need of some TLC. The crank is new; the huret allvit rear derailleur may be as old as the bike; the front derailleur is new. Probably a low end bike given the stamped steel drop outs and the rear derailleur but the thing to keep in mind is that even a lower end European bike like this is a very fine bicycle well worth keeping up. The rust is troubling. You will want to do some work to get on top of it.

This is a neat bike.