1 files changed, 5 insertions, 0 deletions
diff --git a/django/utils/encoding.py b/django/utils/encoding.py
index 94b63762db..2e2ad44e31 100644
--- a/django/utils/encoding.py
+++ b/django/utils/encoding.py
@@ -218,6 +218,11 @@ def escape_uri_path(path):
     return quote(path, safe="/:@&+$,-_.!~*'()")
 
 
+def punycode(domain):
+    """Return the Punycode of the given domain if it's non-ASCII."""
+    return domain.encode('idna').decode('ascii')
+
+
 def repercent_broken_unicode(path):
     """
     As per section 3.2 of RFC 3987, step three of converting a URI into an IRI,