Don't raise StopIteration from generator, return instead

See https://www.python.org/dev/peps/pep-0479/

1 files changed, 1 insertions, 1 deletions

diff --git a/paste/auth/digest.py b/paste/auth/digest.py
index 85e0362..553bd88 100644
--- a/paste/auth/digest.py
+++ b/paste/auth/digest.py
@@ -57,7 +57,7 @@ def _split_auth_string(auth_string):
         prev = item
 
     yield prev.strip()
-    raise StopIteration
+    return
 
 def _auth_to_kv_pairs(auth_string):
     """ split a digest auth string into key, value pairs """