Replace null values in Json file

[volcano63]

This simple code produces the same result (but nobody listens Doh )
Python Code: (Double-click to select all)
1

json.loads(json.dumps(data).replace('null', '"vacio"'))

what you do is to read json, then immediately dump it back as string. So then why read it as json at all? just read the file as text and replace "null" if you are going to do this

the simplest code wouldn't need to import/use json at all

My point was that the approach initially taken by OP would have worked with a slight adjustment. Recursion is the proper way - but solution-like it is simpler with json(not everyone is proficient with recursions - it took me a Scala course to grok it better).