Isitolo esikhulu esidayisa ukudla
Monoprix
Abantu bendawo abangu-26 bayatusa,
Indawo
2045 Rue du parfum
Tunis, Tunis
Amacebiso avela kubantu bendawo
That is where you should go if you want to buy any alcohol. The other store do not sell it.
There isn't many places to buy alcohol in Tunis, only big market like Monoprix or Carrefour at av. de la Liberté or at Jamal Abdenacer street. Google it for the itinerary. Not far.
You can find all essential items you need for a really good price, alcohol too. and it's only 10 mins walk from the apartement.