# Digit converter
import json


def digit_convert(filename):
    with open(filename, 'r') as file:
        data = json.load(file)

    for i in data:
        if len(i['date']['day']) != 2:
            i['date']['day'] = str('{:02d}'.format(i['date']['day']))
            with open('events.json', 'w') as file:
                json.dump(data, file, indent=2)


        if len(i['date']['month']) != 2:
            i['date']['month'] = str('{:02d}'.format(i['date']['month']))
            with open('events.json', 'w') as file:
                json.dump(data, file, indent=2)


digit_convert('events.json')