The elections for a constituent assembly in Libya on 7 July were apparently held under a Mixed-Member Majoritarian (MMM, or parallel) system. Results will not be available for a few days, but that won’t stop various parties from releasing their own claims.
There were 120 seats in a nominal tier, and 80 list seats.
I have a version of the law that someone sent me back in February. I do not know if it was subsequently amended or not. And, of course, it is a translation and may have lost something in the process. Update: David Jandura has much more, including that one region actually has no list seats. (I should have known to look there first!)
The version of the law that I have says that the 120 seats are “by majority system” but then indicates that if the constituency has one seat, it is “FPTP” and if it has more than one, it is “SNTV”. (The terms in quotation marks actually appear in the version I am reading.) Thus it is not a “majority system”, but that may just be poor translation. It is not clear to me how many districts have M=1 and how many M>1 and hence SNTV. It seems that parties could not formally endorse candidates in the nominal tier.
The list tier is districted, but I am unable to tell how many districts there are (and hence their average magnitude). The allocation formula is simple (Hare) quota with largest remainders. Lists are to alternate men and women, and are apparently closed.
Welcome to the wonderful world of electoral systems, Libyans!