How to Convert SASS on the fly to CSS in Python?

Question

I come from a PHP-background, more specific Symfony2. Symfony2 has a feature via Assetic to autmagically convert SASS file into CSS.

Now I am working on my first python project using the bottle framework, and I am wondering if there exists a likewise way to have an on-the-fly CSS-generation of SASS files.

Is there an equivalent to Assetic filters in the python world?

Manually running compass in the background is not an option. I want to use SASS, but the whole ordeal should be very coy on my workflow.

Answer 1

Thinking about this differently, I thought I could just have my python script run sass --watch source.sass:target.css and so I followed up how to run bash commands in python. Hence my __init_.py now includes:

bashCommand = "sass --watch ./css/main.sass:./css/main.css"
import subprocess
process = subprocess.Popen(bashCommand.split(), stdout=subprocess.PIPE)

This leads to the sass file being automagically converted to css without me having to worry about the whole sass conversion aspect.

Answer 2

I recommend you use Boussole. It uses libsass-python and watchdog to watch and automatically compile any given file or directory! Just use the command boussole watch and specify the source and target file/directory.