{
    "users": [
        {
            "password": "8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918",
            "username": "Admin"
        }
    ]
}

json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

with open('userProfiles.json', 'r+') as f: #Open up the json file for reading/writing.
    data = f.read()
    print(data) # Debug message to check if f.read actually contains anything...
    currentProfiles = json.loads(data) # Load the json into a useable list.
    print(currentProfiles) # Debug Message: So I can check if the list loads properly
    username = input("Enter username: ")
    password = hashlib.sha256((input("Enter Password: ")).encode('utf-8')).hexdigest() # Create an sha256 hash to be used later to authenticate users.
    newUser = json.dumps({'users':[{'username':username, 'password':password}]}, sort_keys=True, indent=4)
    f.write(newUser)