lost-theory

from flask import Flask, render_template_string, request

class CustomFlask(Flask):
    jinja_options = Flask.jinja_options.copy()
    jinja_options.update(dict(
        block_start_string='<%',
        block_end_string='%>',
        variable_start_string='%%',
        variable_end_string='%%',
        comment_start_string='<#',