Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
Jay McCormick
6,646 Pointshide_email macro
Why is this not passing? The python works in the terminal, so I'm thinking it's my jinja template, or how I'm accessing the email attribute. Or both.
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
def index():
class User:
email = None
user = User()
user.email = 'kenneth@teamtreehouse.com'
return render_template('user.html', user=user)
{% macro hide_email(User) %}
{% email_list = list(User.email) %}
{% replace_list = range(1, User.email.index('@')) %}
{% for i in replace_list %}
{% email_list[i] = '*' %}
{% endfor %}
{% show_email = "".join(email_list) %}
{{ show_email }}
{% endmacro %}
1 Answer
Chris Freeman
Treehouse Moderator 68,454 PointsYou can't assign to a variable using slice notation in a jinja2 template. You need to build up the output characters
{% macro hide_email(User) %}
{# split name on @ into username and domain #}
{% with name, domain = User.email.split('@') %}
{# concatenate first name char, loop over remaining name chars replacing #}
{# with '*', the @-sign, and the domain #}
{{ name[0] }}{% for letter in name[1:] %}*{% endfor %}@{{ domain }}
{% endwith %}
{% endmacro %}
You must be careful, the jinja2 template wants to add a SPACE between template tags and at NEWLINES.
For additional solutions see this macros challenge post
Jay McCormick
6,646 PointsJay McCormick
6,646 Pointsthanks for the help Chris!