Use Django templates for rendering, rename to `render_template`

mentoring/utils.py

@@ -7,6 +7,8 @@ import logging
 import os
 import pkg_resources
 
+from django.template import Context, Template
+
 from xblock.fragment import Fragment
 
 
@@ -25,19 +27,20 @@ def load_resource(resource_path):
     resource_content = pkg_resources.resource_string(__name__, resource_path)
     return unicode(resource_content)
 
-def eval_template(template_path, context={}):
+def render_template(template_path, context={}):
     """
     Evaluate a template by resource path, applying the provided context
     """
-    template = load_resource(template_path)
-    return template.format(**context)
+    template_str = load_resource(template_path)
+    template = Template(template_str)
+    return template.render(Context(context))
 
 def create_fragment(template_path, context={}):
     """
     Returns a new fragment, with its HTML content initialized to the evaluated template,
     with the provided context
     """
-    html = eval_template(template_path, context=context)
+    html = render_template(template_path, context=context)
     return Fragment(html)