我想用Nested Dictionary中的空字符串替换None。
test={
"order":1234,
"status":"delivered",
"items":[
{
"name":"sample1",
"code":"ASU123",
"unit":None
} ],
"product":{"name":None,"code":None}
}
我想用空字符串替换None,并将字典的转换存储到另一个变量中,例如test1。
以下代码不允许我将其存储在另一个变量中。
def replace_none(test_dict):
# checking for dictionary and replacing if None
if isinstance(test_dict, dict):
for key in test_dict:
if test_dict[key] is None:
test_dict[key] = ''
else:
replace_none(test_dict[key])
# checking for list, and testing for each value
elif isinstance(test_dict, list):
for val in test_dict:
replace_none(val)
答案 0 :(得分:0)
如@ {Pranav Hosangadi所述,您可以首先深度复制test
,然后对复制的字典执行功能:
import copy
b = copy.deepcopy(test)
replace_none(b)
print(test)
print(b)
输出:
{'order': 1234, 'status': 'delivered', 'items': [{'name': 'sample1', 'code': 'ASU123', 'unit': None}], 'product': {'name': None, 'code': None}}
{'order': 1234, 'status': 'delivered', 'items': [{'name': 'sample1', 'code': 'ASU123', 'unit': ''}], 'product': {'name': '', 'code': ''}}