Enviar respuestas de error
De WikiEducator
http://flask.pocoo.org/docs/patterns/errorpages/
controlador
@app.errorhandler(404) def error_not_found(error): return render_template('error/not_found.html'), 404
templates/error/not_found.html
{% extends 'base.html' %}
{% block title %}Not Found{% endblock title %}
{% block main %}
<h2>No encontrado</h2>
{% endblock main %}
