Is it possible to add a default image to this code when the result returned for “avatarUrl” from JSON is null?

@staticmethod
def score_to_mod(score):
    return floor((score - 10) / 2)

def __init__(self, character_id):
    self.character_id = character_id
    self.character_data = self.get_character_data()
    self.character_image = self.character_data.get("decorations", {}).get("avatarUrl", "")[:-51]
    #print(self.character_url)

def update(self):
    self.character_data = self.get_character_data()

def get_character_data(self):
    req = requests.get(f"https://character-service.dndbeyond.com/character/v5/character/{self.character_id}")
    #print("hello")
    if req.status_code != 200:
        return None
    try:
        j = req.json()
        if not "success" in j or not "data" in j:
            return None
        return j["data"]

    except ValueError:
        return None

Here is the end of the script where the data is used by my main script

            return {
                "max": max_hp,
                "current": max_hp - self.character_data["removedHitPoints"],
                "temp": self.character_data["temporaryHitPoints"],
                "image": self.character_image,
                "char_id": self.character_id
            }

I tried adding an “if” statement but the result was unfavorable.

I tried adding the following code to the INIT, and when that didn’t work, I tried adding it to the “get_character_data”

        if self.character_image is None:
            self.character_image = "https://www.dndbeyond.com/avatars/39102/30/1581111423-110222058.jpeg"