python - 如何从数组生成字典的字典？

Question

我有一个像这样的字符串数组:

Array = ['ABC', 'DEF', 'GHI']

如何将其映射到具有以下形状的字典的字典中？

dictionary = {
'ABC': {'DEF': auxFunction(ABC,DEF), 'GHI': auxFunction(ABC,GHI)},
'DEF': {'ABC': auxFunction(DEF,ABC), 'GHI': auxFunction(DEF,GHI)},
'GHI': {'ABC': auxFunction(GHI,ABC), 'DEF': auxFunction(GHI,DEF)},
}

Answer 1

你可以用两个字典理解来做到这一点

dictionary = {name: {x: auxFunction(name, x) for x in array if x != name} for name in array}

{'ABC': {'DEF': auxFunction(ABC, DEF), 'GHI': auxFunction(ABC, GHI)},
 'DEF': {'ABC': auxFunction(DEF, ABC), 'GHI': auxFunction(DEF, GHI)},
 'GHI': {'ABC': auxFunction(GHI, ABC), 'DEF': auxFunction(GHI, DEF)}}