Revise paste radiation_to_file

# radiation data from stations in Poland based on https://mapa.paa.gov.pl/

from requests_html import HTMLSession
session = HTMLSession()
import json

# get session and render html site
r = session.get('https://mapa.paa.gov.pl/')
r.html.render(sleep=1, keep_page=True, scrolldown=1)

# find all CSS 'div' Selectors
results = r.html.find('div')

# list of attributes for all CSS Selectors
list_attrs = []
for item in results:
    list_attrs.append(item.attrs)

# list of dictionares with keys and values for "miasto", "wartosc" and 'status of radiation stations
radiation_list = []
for item in list_attrs:
    if "('station',)" in str(item):
        radiation_dict = {
            'miasto': item['data-nazwa'],
            'wartosc': "{:.3f}".format(float(item['data-wartosc']) / 1000),
            'status': item['data-status'],
            }
        radiation_list.append(radiation_dict)

# load data to json format
jsonString = json.dumps(radiation_list, ensure_ascii=False, sort_keys=True)
print(jsonString)

# write data to file
with open('promieniowanie.json', 'w') as f:
    json.dump(radiation_list, f, ensure_ascii=False)