在python中用空字符串替换nan

Question

My requirement: I want to replace nan with "" (empty string)

Example

data = """{"name":"siva","id":"111","grade":"12","job_id":nan,"location":"ananb"}"""

If you see above example, i just want to replace nan (Not a Number) not the string consists of nan(ananb)

Can any one suggest a solution for this?

Answer 1

A non generic solution for your specific example could be

data.replace(":nan",":")

This wouldn't replace actual values of the dictionary

Answer 2

You can use the string.replace method.

data.replace("nan","")

Hope this solves your problem.

Answer 3

更好的方法是使用正则表达式 ike 替换任何没有被其他字母包围的nan匹配项：

import re

print(re.sub("\\Wnan\\W", "", data))