Fixed #26109 -- Raised a helpful error if loader.select_tamplate() is passed a string.

1 files changed, 7 insertions, 0 deletions

diff --git a/django/template/loader.py b/django/template/loader.py
index 98e56817bf..44d5332b92 100644
--- a/django/template/loader.py
+++ b/django/template/loader.py
@@ -33,6 +33,13 @@ def select_template(template_name_list, using=None):
 
     Raises TemplateDoesNotExist if no such template exists.
     """
+    if isinstance(template_name_list, six.string_types):
+        raise TypeError(
+            'select_template() takes an iterable of template names but got a '
+            'string: %r. Use get_template() if you want to load a single '
+            'template by name.' % template_name_list
+        )
+
     chain = []
     engines = _engine_list(using)
     for template_name in template_name_list: