Is there a better data structure than classes for a set of employes?

[Schlangenversteher]

Example with dictionaries:

employeList = {
    {
       "name": "susan",
       "nationality": "netherland",
       "overallCost": None
    },
    ...
}

# resolve overall cost for susan
employeList[0]["overallCost"] = resolveOverallCost(employeList[0])

workWithEmployeList()

Example with yaml:

# employe.yml
- name: susan
  nationality: netherland
...

# python script

class employeObject:
    overallCost = None
    def __init__(self, name, nationality):
        self.name = name
        self.nationarlity = nationality
        self.resolveOverallCost()

    def resolveOverallCost(self):
        ...
        self.overallCost = calculatedValue

open(yamlfile):
    employeList = readYamlFile()

for employe in employeList:
    emloyeObjectList.append(employeObject(employe["name], emplaye["nationality"])

workWithEmployeObjectList()