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Python Flask Basics Character Builder Starting the Builder

Anders Axelsen
Anders Axelsen
3,471 Points
Posted by Anders Axelsen
Anders Axelsen
3,471 Points

In the video at 2:01, I get this error: jinja2.exceptions.UndefinedError: 'function object' has no attribute 'get'

I have tried comparing my script with the script in the video some times. I do not, however, succeed in loading site. This occurred for the first time, when I was at 2:01. Maybe this will ease debugging a lengthier kind of script.

Kindly, Anders.

app.py:

import json
from flask import (Flask, render_template, redirect, 
                   url_for, request, make_response)
from options import DEFAULTS

app = Flask(__name__)



def get_saved_data():
    try:
        data = json.loads(request.cookies.get('character'))
    except TypeError:
        data = {}
    return data




@app.route('/')
def index():
    return render_template('index.html', saves=get_saved_data)


@app.route('/builder')
def builder():
    return render_template(
        'builder.html',
        saves=get_saved_data(),
        options=DEFAULTS
    )


@app.route('/save', methods=['POST'])
def save():
    response = make_response(redirect(url_for('builder')))
    data = get_saved_data()
    data.update(dict(request.form.items()))
    response.set_cookie('character', json.dumps(data))
    return response

app.run(debug=True, host='0.0.0.0', port=8000)

index.html:

{% extends "layout.html" %}
{% block content %}
<!--Enter Name -->
<div class="enter-name">
    <div class="grid-100">
        <img src="/static/img/bear_avatar.svg" class="bear-avatar" />
    </div>
    <div class="grid-100">
        <form action="{{ url_for('save') }}" method="POST">
            <label>Name your bear</label>
            <input type="text" name="name" value="{{ saves.get('name', '') }}" autofocus>
            <input type="submit" value="Let's build it!">
        </form>
    </div>
</div>
{% endblock %}

options.py:

DEFAULTS = {
    "shirts": [
        "black",
        "green",
        "orange",
        "pink",
        "red",
        "teal",
        "purple"
    ],
    "pants": [
        "black",
        "blue",
        "green",
        "grey",
        "stars",
        "stripes",
        "tiger"
    ],
    "hat": [
        "black-baseball",
        "black-beanie",
        "bowler",
        "headband",
        "party",
        "pink-baseball",
        "pink-beanie"
    ],
    "glasses": [
        "optical-black",
        "optical-blue",
        "optical-purple",
        "optical-red",
        "optical-yellow",
        "sun-black",
        "sun-red"
    ],
    "footwear": [
        "sandal-pink",
        "sandal-purple",
        "shoes-black",
        "shoes-blue",
        "shoes-grey",
        "shoes-purple",
        "shoes-tiger"
    ],
    "colors": [
        "black",
        "purple",
        "blue",
        "green",
        "yellow",
        "orange",
        "red"
    ]
}

builder.html:

{% extends "layout.html" %}

{% block content %}
<!--Build Area -->
<form action="" method="POST" class="wrap no-top">
    <div class="grid-100 row">
        <div class="grid-30">
            <div class="title">
                <input type="text" name="name" value="{{ saves.get('name', '') }}">
            </div>
        </div>
        <div class="grid-70">
            <div class="colors">
                {% for color in options['colors'] $}
                    <input type="radio" id="{{ color }}" name="colors" value="{{ color }}"
                        {% if saves.get('color') == color %}checked{% endif %}>
                    <label for="{{ color }}"></label>
                {% endfor %}
                <button class="btn">Update</button>
            </div>
        </div>
        <div id="bear" class="grid-100">
            <div class="bear-body"><img src="/static/img/bear_body.svg" /></div>
            <div class="head"><img src="/static/img/bear_face.svg" /></div>
            <div class="nose"><img src="/static/img/bear_nose.svg" /></div>
        </div>
        <div class="items">
        </div>
    </div>
</form>

{% endblock %}

2 Answers

Anders Axelsen
Anders Axelsen
3,471 Points
Anders Axelsen
Anders Axelsen
3,471 Points

Fixed! The get_saved_data() needed its ().

app.py line 22:

@app.route('/')
def index():
    return render_template('index.html', saves=get_saved_data())
Natalia Solomkina
Natalia Solomkina
1,594 Points
Natalia Solomkina
Natalia Solomkina
1,594 Points

Had the same problem, thank you!

Dillon Reyna
Dillon Reyna
9,531 Points
Dillon Reyna
Dillon Reyna
9,531 Points

Man - it's crazy how long two parenthesis kept me held up - thanks!