Flattened the render_sections loop

pystache/template.py

@@ -29,18 +29,20 @@ class Template(object):
                 break
             
             section, section_name, inner = match.group(0, 1, 2)
-            if section_name in context and context[section_name]:
-                if hasattr(context[section_name], '__iter__'):
+
+            it = context.get(section_name)
+            replacer = ''
+            if it and not hasattr(it, '__iter__'):
+                replacer = inner
+            elif it:
                 insides = []
                 for item in context[section_name]:
                     ctx = context.copy()
                     ctx.update(item)
                     insides.append(self.render(inner, ctx))
-                    template = template.replace(section, ''.join(insides))
-                else:
-                    template = template.replace(section, inner)
-            else:
-                template = template.replace(section, '')
+                replacer = ''.join(insides)
+            
+            template = template.replace(section, replacer)
 
         return template