json format

[Bubu93200]

I do not think you can generate that output using json.dump(). If you want to know if it is allowed, try it yourself. Create a file using a text editor and try to load it.

If I can load it with json library, it's allowed.
Ok. I'll try

Thanks for your help

I do not think you can generate that output using json.dump(). If you want to know if it is allowed, try it yourself. Create a file using a text editor and try to load it.

If I can load it with json library, it's allowed.
Ok. I'll try

Thanks for your help

I solved my problem.
I exhibit my code for other people who can have the same problem.

I found code to have :
- compact file
- file easily readable by human
- file uses append mode so its very quick to open et upgrade file. Its very usable for very very long files (log files)
- file is breakable in several files
- we can easily convert file to json file
- we can add index or datation on records (add keys as "time", "date", "index" if you want)
- records can be differents on each line

And to do this, I use JSONLINES format (I didn't know this format)

import jsonlines

def writeJsonlines(fileName, dictionary):
    """
    https://jsonlines.org/
    use import jsonlines
    """ 
    try:
        with jsonlines.open(fileName, "a") as jsonlinesfile:
            jsonlinesfile.write(dictionary)
    except IOError:
        print("writeJsonlines : failed to open file") 

def readJsonlines(fileName):
    """
    https://jsonlines.org/
    use import jsonlines
    """ 
    try:
        with jsonlines.open(fileName, 'r') as jsonlfile:
            jsonl_list = list(jsonlfile)
        print('readjsonlines : ', jsonl_list, "\n")
        return jsonl_list
    except IOError:
        print("readJsonlines : failed to open file")
        return None
        

File output is as :

Output:
{"surname": "xxx", "forename": "jean", "age": 24},
{"surname": "yyy", "forename": "paul", "age": 31},
{"surname": "zzz", "forename": "julia", "age": 28},
{"surname": "aaa", "forename": "Paul", "age": 40},
{"name": "bruno", "age": 46}

Very usefull, flexible. great