jsondatabytes = jsondata.encode('utf-8')
req.add_header('Content-Length', len(jsondatabytes))
print(('\n', jsondatabytes, '\n'))
response = urllib.request.urlopen(req, jsondatabytes)
results = response.read()
results = results.decode('utf-8')
results = results.replace('\\u', '&#x')
print(results)
Преобразование строки байтов в строку юникода