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Python

Posted by Joni Carlson
Joni Carlson
11,940 Points

Flask Basics Nested Loops Challenge Task 2 of 2

This code does not work. Any suggestions?

<ul class="teachers">
  {% for teacher in teachers %}
  <li>
      <h2> {{ teacher.name }} </h2>
        <ul class="courses">
          {% for course in courses %}
          <li>{{ teacher.course }}</li>
          {% endfor %}
  </li>
  {% endfor %}
</ul>
flask_app.py 
from flask import Flask, render_template

from teachers import TEACHERS

app = Flask(__name__)


@app.route('/')
def index():
    return render_template("teachers.html", teachers=TEACHERS)
templates/teachers.html 
<ul class="teachers">
  {% for teacher in teachers %}
  <li>
      <h2> {{ teacher.name }} </h2>
        <ul class="courses">
          {% for course in courses %}
          <li>{{ teacher.course }}</li>
          {% endfor %}
  </li>
  {% endfor %}
</ul>
Joni Carlson
Joni Carlson
11,940 Points

Found missing </ul> Then tried these:

<ul class="teachers">
  {% for teacher in teachers %}
  <li>
      <h2> {{ teacher.name }} </h2>
        <ul class="courses">
          {% for course in courses %}
          <li>{{ teacher['course'] }}</li>
          {% endfor %}
    </ul>
  </li>
  {% endfor %}
</ul>

AND

<ul class="teachers">
  {% for teacher in teachers %}
  <li>
      <h2> {{ teacher.name }} </h2>
        <ul class="courses">
          {% for course in courses %}
          <li>{{ teacher.course }}</li>
          {% endfor %}
    </ul>
  </li>
  {% endfor %}
</ul>

AND

<ul class="teachers">
  {% for teacher in teachers %}
  <li>
      <h2> {{ teacher.name }} </h2>
        <ul class="courses">
          {% for course in courses %}
          <li>{{ teacher["course"] }}</li>
          {% endfor %}
    </ul>
  </li>
  {% endfor %}
</ul>

Still doesn't work

1 Answer

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

So, in your inner for loop, you're supposed to be looping over the courses key/attribute for each teacher.

Now add a new <ul> inside of the <li> with a class of "courses". Inside this <ul> loop through the teacher's 'courses' key, creating an <li> for each course and printing the course.

And, inside of that, you need to print out the {{ course }} that you're currently on.

So that part would look like:

<ul class="courses">
    {% for course in teacher.courses %}
    <li>{{ course }}</li>
    {% endfor %}
</ul>