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-rw-r--r--Lib/difflib.py7
1 files changed, 2 insertions, 5 deletions
diff --git a/Lib/difflib.py b/Lib/difflib.py
index 9bc0d0dc01..ae3479d3d8 100644
--- a/Lib/difflib.py
+++ b/Lib/difflib.py
@@ -1448,10 +1448,7 @@ def _mdiff(fromlines, tolines, context=None, linejunk=None,
# are a concatenation of the first character of each of the 4 lines
# so we can do some very readable comparisons.
while len(lines) < 4:
- try:
- lines.append(next(diff_lines_iterator))
- except StopIteration:
- lines.append('X')
+ lines.append(next(diff_lines_iterator, 'X'))
s = ''.join([line[0] for line in lines])
if s.startswith('X'):
# When no more lines, pump out any remaining blank lines so the
@@ -1514,7 +1511,7 @@ def _mdiff(fromlines, tolines, context=None, linejunk=None,
num_blanks_to_yield -= 1
yield ('','\n'),None,True
if s.startswith('X'):
- raise StopIteration
+ return
else:
yield from_line,to_line,True