from liquid import Liquid
liq = Liquid('{{a}}', from_file=False)
ret = liq.render(a = 1)
# ret == '1'

# load template from a file
liq = Liquid('/path/to/template.html')

from jinja2 import Environment, FileSystemLoader
env = Environment(loader=FileSystemLoader('./'), ...)

liq = Liquid.from_env("/path/to/template.html", env)

liq = Liquid(
    """
    {% python %}
    from os import path
    filename = path.join("a", "b")
    {% endpython %}
    {{filename}}
    """,
    mode="wild" # supported: standard(default), jekyll, shopify, wild
)
liq.render()
# 'a/b'

from liquid import defaults, Liquid
defaults.FROM_FILE = False
defaults.MODE = 'wild'

# no need to pass from_file and mode anymore
liq = Liquid('{% from_ os import path %}{{path.basename("a/b.txt")}}')
liq.render()
# 'b.txt'