def getPossibleProjects():
"get possible projects"
preliminaryProjects = []
technames = fo.techs() # returns names of all techs
empire = fo.getEmpire()
for techname in technames:
if empire.getTechStatus(techname) == fo.techStatus.researchable:
preliminaryProjects.append(techname)
unusableTechs = TechsListsAI.unusableTechsList()
possibleProjects = (set(preliminaryProjects)-set(unusableTechs))
return possibleProjects
