What to do with this error?

Question

Python

Here is my code:

import requests

def scrape():
    response = requests.get(URL)
    response_json = response.json()
    return float(response_json["USD"]["last"])

URL = 'https://blockchain.info/ru/ticker'
last_price = None

while True:
    latest_price = scrape()
    if latest_price != last_price:
        print("Последняя цена BTC: ", latest_price)
        last_price = latest_price

During parsing, the same error pops up all the time. What should I do with her? Help me please!

Traceback (most recent call last):
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\task.py", line 12, in <module>
    latest_price = scrape()
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\task.py", line 5, in scrape
    response_json = response.json()
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\lib\site-packages\requests\models.py", line 910, in json
    return complexjson.loads(self.text, **kwargs)
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\lib\site-packages\simplejson\__init__.py", line 525, in loads
    return _default_decoder.decode(s)
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\lib\site-packages\simplejson\decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "C:\Users\vo171\AppData\Local\Programs\Python\Python39\lib\site-packages\simplejson\decoder.py", line 400, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

Answer 1

Remove "ru" from URL:

>>> URL = 'https://blockchain.info/ticker'
>>> response = requests.get(URL)
>>> response.json()
{'AUD': {'15m': 51425.37, 'last': 51425.37, 'buy': 51425.37, 'sell': 51425.37, 'symbol': 'AUD'}, '...}

Answer 2

So no json returned