I can't get Flask to work with scss. I looked into this Using sass with Flask and jinja2 and Set up Flask with webassets.
But I am currently stuck. I setup everything and when running the server with flask run the server starts without errors. When I go to localhost:5000 I get this error:
This page isn’t working localhost didn’t send any data. ERR_EMPTY_RESPONSE
But the logs of the server are empty and no *.css file got generated. All thats in the console:
* Serving Flask app "app"
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
This is my structure:
── app
├── __init__.py
├── assets
│ └── scss
│ ├── nav.scss
│ └── partials
│ └── color.scss
├── config.py
├── static
├── templates
│ └── layout.html
└── views.py
__init__.py
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_assets import Environment, Bundle
app = Flask(__name__)
app.config.from_object('app.config')
db = SQLAlchemy(app)
assets = Environment(app)
assets.url = app.static_url_path
scss = Bundle(
"assets/scss/nav.scss",
filters="pyscss",
output="all.css",
depends="assets/scss/partials/*.scss"
)
assets.register("style", scss)
from app import views
layout.html
<!DOCTYPE html>
<html>
<head>
{% assets "style" %}
<link rel="stylesheet" href="{{ ASSET_URL }}" type="text/css" />
{% endassets %}
</head>
<body>
Hello World
</body>
</html>
config.py
DEBUG = True
ASSETS_DEBUG = True
SQLALCHEMY_DATABASE_URI = 'sqlite:////tmp/test.db'
SQLALCHEMY_TRACK_MODIFICATIONS = False
views.py
from flask import render_template
from app import app
@app.route('/')
@app.route('/index')
def index():
return render_template('layout.html', title="Home")
nav.scss
body{
background: green;
}
color.scss
$primary-accent-color: rgba(33, 150, 243, 1.0);
requirements.txt
astroid==1.5.3
attrs==17.3.0
autopep8==1.3.3
Babel==2.5.1
click==6.7
Flask==0.12.2
Flask-Assets==0.12
Flask-Babel==0.11.2
Flask-Login==0.4.0
Flask-SQLAlchemy==2.3.2
Flask-WTF==0.14.2
isort==4.2.15
itsdangerous==0.24
Jinja2==2.10
lazy-object-proxy==1.3.1
MarkupSafe==1.0
mccabe==0.6.1
pluggy==0.6.0
py==1.5.2
pycodestyle==2.3.1
pylint==1.7.4
pyScss==1.3.5
pytest==3.3.1
pytz==2017.3
six==1.11.0
SQLAlchemy==1.1.15
webassets==0.12.1
Werkzeug==0.12.2
wrapt==1.10.11
WTForms==2.1