python单线程

Question

我想要一个单线程解决方案在下面的代码Python但如何？

total = 0 
for ob in self.oblist: 
    total+=sum(v.amount for v in ob.anoutherob) 

它返回总价值。我想它一个衬垫，PLZ任何一个可以帮助我

Answer 1

无需对sum()通话加倍

total = sum(v.amount for ob in self.oblist for v in ob.anotherob) 

Answer 2

您只需折叠for循环到理解的另一个层面：

total = sum(sum(v.amount for v in ob.anotherob) for ob in self.oblist)