Show software errors as web page

templates/show_error.html

@@ -0,0 +1,30 @@
+{% extends "base.html" %}
+
+{% block style %}
+<link rel="stylesheet" href="{{url_for('static', filename='css/exception.css')}}" />
+{% endblock %}
+
+{% block content %}
+<div class="p-2">
+
+<h1>Software error: {{ tb.exception_type }}</h1>
+<div>
+  <pre>{{ tb.exception }}</pre>
+</div>
+
+{% set body %}
+URL: {{ request.url }}
+
+{{ tb.plaintext | safe }}
+{% endset %}
+
+<p><a class="btn btn-primary btn-lg" role="button" href="https://github.com/EdwardBetts/dab-mechanic/issues/new?title={{ tb.exception + " " + request.url | urlencode }}&body={{ body | urlencode }}">Submit as an issue on GitHub</a> (requires an account with GitHub)</p>
+
+<h2 class="traceback">Traceback <em>(most recent call last)</em></h2>
+{{ tb.render_summary(include_title=False) | safe }}
+
+<p>Error in function "{{ last_frame.function_name }}": {{ last_frame_args | pprint }}</p>
+<pre>{{ last_frame.locals | pprint }}</pre>
+</div>
+
+{% endblock %}