gh-156658: Only XML white space characters are treated as white space - #156659
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serhiy-storchaka merged 1 commit intoSep 2, 2026
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… space XML defines white space as " \t\r\n" (see XML 1.0, 2.3), but str.strip() also strips other characters, such as U+00A0. Such characters could be lost in ElementTree.indent(), in canonicalize(strip_text=True), and when parsing with the whitespace-in-element-content feature turned off.
serhiy-storchaka
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needs backport to 3.13
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Thanks @serhiy-storchaka for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15. |
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GH-156825 is a backport of this pull request to the 3.15 branch. |
bedevere-app
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needs backport to 3.15
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GH-156826 is a backport of this pull request to the 3.14 branch. |
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GH-156827 is a backport of this pull request to the 3.13 branch. |
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…e space (GH-156659) (GH-156827) XML defines white space as " \t\r\n" (see XML 1.0, 2.3), but str.strip() also strips other characters, such as U+00A0. Such characters could be lost in ElementTree.indent(), in canonicalize(strip_text=True), and when parsing with the whitespace-in-element-content feature turned off. (cherry picked from commit e7c93b7) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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…e space (GH-156659) (GH-156826) XML defines white space as " \t\r\n" (see XML 1.0, 2.3), but str.strip() also strips other characters, such as U+00A0. Such characters could be lost in ElementTree.indent(), in canonicalize(strip_text=True), and when parsing with the whitespace-in-element-content feature turned off. (cherry picked from commit e7c93b7) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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XML defines white space as
" \t\r\n"(XML 1.0, 2.3), butstr.strip()also strips other characters, such as U+00A0. They are content, and were lost in:ElementTree.indent(), which overwrote them with the indentation;canonicalize(strip_text=True), which changed the canonical form;xml.domparsing with thewhitespace-in-element-contentfeature turned off, which removed such text nodes from the document;Text.isWhitespaceInElementContent, which reported them as ignorable white space.