Python：动态引用对象

Question

Apologies if this is a silly question.

I have a list of potential dictionary keys here:

 form_fields = ['sex',
                'birth',
                'location',
                'politics']

I am currently manually adding values to these keys like so:

        self.participant.vars["sex"] =  [Constants.fields_dict["sex"][0], Constants.fields_dict["sex"][1], self.player.name]
        self.participant.vars["birth"] = [Constants.fields_dict["birth"][0], Constants.fields_dict["birth"][1],self.player.age]
        self.participant.vars["location"] = [Constants.fields_dict["location"][0], Constants.fields_dict["location"][1],self.player.politics]

I'd like to be able to do a use a for loop to do this all at once like so:

for i in form_fields:
    self.participant.vars[i] =  [Constants.fields_dict[i][0], Constants.fields_dict[i][1], self.player.`i`]

Obviously, however, I can't reference the object self.player. i like that. Is there a way to reference that object dynamically?

Answer 1

use getattr , For example, getattr(x, 'foobar') is equivalent to x.foobar .

for i in form_fields:
    self.participant.vars[i] =  [Constants.fields_dict[i][0], Constants.fields_dict[i][1], getattr(self.player, i)]