21 lines
643 B
Diff
21 lines
643 B
Diff
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Fix CVE-2018-1061:
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1061
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Taken from upstream commit (sans test and NEWS):
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https://github.com/python/cpython/commit/e052d40cea15f582b50947f7d906b39744dc62a2
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diff --git a/Lib/difflib.py b/Lib/difflib.py
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index 1c6fbdbedcb7..788a92df3f89 100644
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--- a/Lib/difflib.py
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+++ b/Lib/difflib.py
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@@ -1103,7 +1103,7 @@ def _qformat(self, aline, bline, atags, btags):
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import re
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-def IS_LINE_JUNK(line, pat=re.compile(r"\s*#?\s*$").match):
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+def IS_LINE_JUNK(line, pat=re.compile(r"\s*(?:#\s*)?$").match):
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r"""
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Return 1 for ignorable line: iff `line` is blank or contains a single '#'.
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