python - How to Fix JSON Key Values without double-quotes?

Question

I currently have JSON in the below format. Some of the Key values are NOT properly formatted as they are missing double quotes (")

How do I fix these key values to have double-quotes on them?

    {      
Name: "test",
Address: "xyz",
"Age": 40,
"Info": "test"
}

Required:

    {      
"Name": "test",
"Address": "xyz",
"Age": 40,
"Info": "test"
}

Using the below post, I was able to find such key values in the above INVALID JSON. However, I could NOT find an efficient way to replace these found values with double-quotes.

s = "Example: String"
out = re.findall(r'w+:', s)

How to Escape Double Quote inside JSON

Answer 1

Using Regex:

import re
data = """{ Name: "test", Address: "xyz"}"""
print( re.sub("(w+):", r'"1":',  data) )

Output:

{ "Name": "test", "Address": "xyz"}