[3.12] gh-107715: Escape class name in regular expression (GH-107716) #107726
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…7716) This patch escapes the class name before embedding it in the regular expression for `pat` in `doctest.DocTestFinder._find_lineno`. While class names do not ordinarily contain special characters, it is possible to encounter these when a class is created dynamically. Escaping the name will correctly return `None` in this scenario, rather than potentially matching a different class or raising `re.error` depending on the symbols used. (cherry picked from commit 8579327) Co-authored-by: Gertjan van Zwieten <git@gjvz.nl>
This was referenced Aug 7, 2023
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This patch escapes the class name before embedding it in the regular expression
for
patindoctest.DocTestFinder._find_lineno. While class names do notordinarily contain special characters, it is possible to encounter these when a
class is created dynamically. Escaping the name will correctly return
Noneinthis scenario, rather than potentially matching a different class or raising
re.errordepending on the symbols used.(cherry picked from commit 8579327)
Co-authored-by: Gertjan van Zwieten git@gjvz.nl