Gradience/gradience/modules/shell.py

from jinja2 import Environment, FileSystemLoader

import os


def modify_colors(scss_path, output_path, **vars):
    env = Environment(
        loader=FileSystemLoader(os.path.dirname(scss_path)),
    )
    template = env.get_template("_colors.txt")
    with open(output_path, "w", encoding="utf-8") as f:
        f.write(template.render(**vars))