copy.deepcopy を使えば良い。
import copy
import json
value = {
"name": "Yamada",
"gender": "male",
"address": {
"country": "Japan",
"Prefecture": "Saitama",
}
}
dup1 = copy.deepcopy(value)
dup1["name"] = "Suzuki"
dup1["address"]["Prefecture"] = "Tokyo"
print(json.dumps(dup1, indent=2))
print(json.dumps(value, indent=2))
{
"name": "Suzuki",
"gender": "male",
"address": {
"country": "Japan",
"Prefecture": "Tokyo"
}
}
{
"name": "Yamada",
"gender": "male",
"address": {
"country": "Japan",
"Prefecture": "Saitama"
}
}