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Stan Ulbrych 2025-10-26 16:12:46 +00:00
parent d74a96366d
commit 8d02003b5d
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GPG key ID: B8E58DBDB2A1A0B8
3 changed files with 10 additions and 2 deletions
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2
Lib/test/test_textwrap.py
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@ -388,6 +388,8 @@ What a mess!
[" This is a sentence with leading whitespace."])
self.check_wrap(text, 30,
[" This is a sentence with", "leading whitespace."])
self.check_wrap(' ABCDEFG', 1,
[' ', 'A', 'B', 'C', 'D', 'E', 'F', 'G'])
def test_drop_whitespace_whitespace_line(self):
# Check that drop_whitespace skips the whole line if a non-leading

8
Lib/textwrap.py
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@ -304,8 +304,12 @@ class TextWrapper:
# If the last chunk on this line is all whitespace, drop it.
if self.drop_whitespace and cur_line and cur_line[-1].strip() == '':
cur_len -= len(cur_line[-1])
del cur_line[-1]
# If this is the first line keep it if a non-whitespace chunk follows
if not lines and len(cur_line) == 1 and chunks and chunks[-1].strip() != '':
pass
else:
cur_len -= len(cur_line[-1])
del cur_line[-1]
if cur_line:
if (self.max_lines is None or

2
Misc/NEWS.d/next/Library/2025-10-26-16-11-45.gh-issue-140627.BiEgy_.rst Normal file
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@ -0,0 +1,2 @@
Fix :func:`textwrap.wrap` to preserve a whitespace only line at the start of
a paragraph when non-whitespace text follows.