Describes using the expression statement

jinja_expression_statement.py

from jinja2 import FileSystemLoader
from jinja2 import Environment
from jinja2.ext import ExprStmtExtension
env = Environment(lstrip_blocks=True, loader=FileSystemLoader(searchpath='templates'), extensions=[ExprStmtExtension])

class Thing:

    def __init__(self, a, b):
        self.a = a
        self.b = b


class Object:

    def __init__(self, name, things=None):
        self.name = name
        self.things = things

class ObjectSaver:

    def __init__(self):
        self._dict = {}

    def save(self, name, thing):
        self._dict[name] = thing
        return '#'

    def getDict(self):
        return self._dict

obj = Object(name='Object', things=[Thing(a='abc', b='def'), Thing(a='def', b='ghi')])
objectSaver = ObjectSaver()

print(env.get_template('sample.j2').render(obj=obj, objectSaver=objectSaver))

print(objectSaver.getDict())