在对json进行编码后，我有了额外的空格，我如何删除它？

encoded_json = '{"name": "John", "age": 30, "city": "New York"} '
clean_json = encoded_json.replace(" ", "")
print(clean_json)

import re

encoded_json = '{"name": "John", "age": 30, "city": "New York"} '
clean_json = re.sub(r'\s', '', encoded_json)
print(clean_json)

import json

encoded_json = '{"name": "John", "age": 30, "city": "New York"} '
json_obj = json.loads(encoded_json)
clean_json = json.dumps(json_obj)
print(clean_json)