import datetime import timeago from flask import Blueprint blueprint = Blueprint("filters", __name__, template_folder="templates") @blueprint.app_template_filter() def format_result(dttm): dttm = str(dttm).split(".") time = datetime.timedelta(seconds=int(dttm[0])) microtime = dttm[1][:3] return f"{time}:{microtime}" @blueprint.app_template_filter() def timesince(dttm): return timeago.format(dttm, datetime.datetime.now())