import datetime from flask import current_app import dateutil app = current_app @app.template_filter() def to_month(m): return [ "januari", "februari", "maart", "april", "mei", "juni", "juli", "augustus", "september", "oktober", "november", "december", ][m - 1] @app.template_filter() def datetime_format(value: datetime.datetime): value = value.astimezone(dateutil.tz.gettz("Europe/Amsterdam")) return ( f"{value.day} {to_month(value.month)} {value.year} om {value.strftime('%H:%M')}" ) @app.template_filter() def date_format(value: datetime.date): return f"{value.day} {to_month(value.month)} {value.year}"