Python Jinja'ing Objects

gist_jinja.py

#!/usr/bin/env python3

import time
import json

import jinja2
import yaml

const_date_yaml="""
---
twoweeks: "{{ twoweeksago }}"
hey: true
"""

unhydrated_config = yaml.safe_load(const_date_yaml)

dynam_vars = {"twoweeksago" : int(time.time()) - 604800*2}

if isinstance(unhydrated_config, str) is False:
    # If it's a string 
    do_json = True
    template = json.dumps(unhydrated_config, default=str)
else:
    # Won't be ran in example
    do_json = False
    template = unhydrated_config

jtemplate = jinja2.Environment(loader=jinja2.BaseLoader).from_string(template)

rstring = jtemplate.render(**dynam_vars)
    
if do_json is True:
    rendered = json.loads(rstring)
else:
    # Not called in Example
    rendered = rstring

print(rstring)