Modifying a json content

Changejsoncode.py

import json
import os


class Programs:
    def __init__(self):  # class constructur (called at creation time)
        self.code = ""  # the default name is the empty string


def catalogcode(code):
    script_dir = os.path.dirname(__file__)  # <-- absolute dir the script is in
    rel_path = "20171013063854.json"
    abs_file_path = os.path.join(script_dir, rel_path)

    with open(abs_file_path, "r+") as jsonFile:
        data = json.load(jsonFile)
        print (data['meta']['catalog_version'])
        data['meta']['catalog_version'] = code  # <--- add `id` value.
        jsonFile.seek(0)  # <--- should reset file position to the beginning.
        json.dump(data, jsonFile, indent=4)
        jsonFile.truncate()
        print (data['meta']['catalog_version'])
        return catalogcode