Doubt regarding Redis code

Redis commands & data structures
1

Hi,

Im creating a Redis database with Jupyter notebook. I have created some users and values but, when I try to use them in fuctions, it seems that they dont exist.

If I print the keys:

keys = r.keys('*')
for key in keys:
    print(key.decode())

I obtain something like that:

user:name:animalhealtheu
following:b'1'
post:9
followers:b'1'
followers:b'3'
user:name:seers_helen

If I use

user_id = r.get('user:name:seers_helen')
print(user_id)

the output is the key b’8’

Therefore those users and keys are created, but now if I try to use this function:

def obtener_followings(usuario):
    # User ID
    user_id = r.get(f'user:id:{usuario}')
    if user_id is None:
        print(f'user {usuario} does not exist')
        return
    followings = r.zrange(f'following:{user_id}', 0, -1, withscores=True)
    for following_id, timestamp in followings:
        following_name = r.get(f'user:name:{following_id}').decode('utf-8')
        timestamp_str = datetime.fromtimestamp(timestamp).strftime('%Y-%m-%d %H:%M:%S')
        print(f'{following_name} - {timestamp_str}')

I obtain the output that the user does not exist, like if it returned a none value, but the user exists and has keys.

What could be happening?

thanks in advance