Jinja2 Setup Example

jinja2_example.py

import arrow
import jinja2

# Set up the template engine
template_loader = jinja2.FileSystemLoader('./templates')
template_env = jinja2.Environment(loader=template_loader)
template_env.filters['fmt_date'] = lambda v: arrow.get(v, fmt).format(fmt)

# Write the file
template = template_env.get_template('template.html')
html = template.render(data={})
pathlib.Path('index.html').write_text(html)