PEP 479: Change StopIteration handling inside generators.
Closes issue #22906.
diff --git a/Lib/difflib.py b/Lib/difflib.py
index 96fd9ab..aa98436 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -1596,8 +1596,7 @@
# them up without doing anything else with them.
line_pair_iterator = _line_pair_iterator()
if context is None:
- while True:
- yield next(line_pair_iterator)
+ yield from line_pair_iterator
# Handle case where user wants context differencing. We must do some
# storage of lines until we know for sure that they are to be yielded.
else: