Hacking towards the second.py functionality

magic_app/templates/macros.html

@@ -0,0 +1,16 @@
+{#
+  From:  https://wtforms.readthedocs.io/en/2.3.x/specific_problems/#rendering-errors
+  Usage: with_errors(form.field, style='font-weight: bold')
+#}
+
+{% macro with_errors(field) %}
+    <div class="form_field">
+    {% if field.errors %}
+        {% set css_class = 'has_error ' + kwargs.pop('class', '') %}
+        {{ field(class=css_class, **kwargs) }}
+        <ul class="errors">{% for error in field.errors %}<li>{{ error|e }}</li>{% endfor %}</ul>
+    {% else %}
+        {{ field(**kwargs) }}
+    {% endif %}
+    </div>
+{% endmacro %}