I am trying to search for all users in an sql database whose first names are "blah" and return that data to my html through an ajax call. I have this functioning with a single user like this: 

```
user = db.execute(
            'SELECT * FROM user WHERE genres LIKE ?', (str,)
        ).fetchone()
        user_details = {
            'first': user['first'],
            'last': user['last'],
            'email': user['email']
        }
        y = json.dumps(user_details)
        return jsonify(y)

```

Now for multiple users I want the struct to look something like this:

```
users{
    user1_details = {
        'first': user['first'],
        'last': user['last'],
        'email': user['email']
    }
    user2_details = {
        'first': user2['first'],
        'last': user2['last'],
        'email': user2['email']
    }
    user3_details = {
        'first': user3['first'],
        'last': user3['last'],
        'email': user3['email']
    }
}

```

generating each user\_details in a loop. I know I can use fetchall() to find all the users, but how do I concatenate the details?