python - python中的动态类型转换

Question

我有 2 个指令:

dicts1 = {'field1':'', 'field2':1, 'field3':1.2}
dicts2 = {'field1':123, 'field2':123, 'field3':'123'}

我想将 dict2 中的每个值转换为与 dict1 中相应值相同的类型，最快的 pythonic 方法是什么？

Answer 1

假设它们是兼容的类型:

for k, v in dicts1.iteritems():
    try:
        dicts2[k] =  type(v)(dicts2[k])
    except (TypeError, ValueError) as e:
        pass # types not compatible
    except KeyError as e:
        pass # No matching key in dict