[3.7] bpo-34454: fix .fromisoformat() methods crashing on inputs with surrogate code points (GH-8862) #8877
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…gate code points (pythonGH-8862) The current C implementations **crash** if the input includes a surrogate Unicode code point, which is not possible to encode in UTF-8. Important notes: 1. It is possible to pass a non-UTF-8 string as a separator to the `.isoformat()` methods. 2. The pure-Python `datetime.fromisoformat()` implementation accepts strings with a surrogate as the separator. In `datetime.fromisoformat()`, in the special case of non-UTF-8 separators, this implementation will take a performance hit by making a copy of the input string and replacing the separator with 'T'. Co-authored-by: Alexey Izbyshev <izbyshev@ispras.ru> Co-authored-by: Paul Ganssle <paul@ganssle.io> (cherry picked from commit 096329f) Co-authored-by: Paul Ganssle <pganssle@users.noreply.github.com>
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Aug 23, 2018
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The current C implementations crash if the input includes a surrogate
Unicode code point, which is not possible to encode in UTF-8.
Important notes:
.isoformat()methods.datetime.fromisoformat()implementation acceptsstrings with a surrogate as the separator.
In
datetime.fromisoformat(), in the special case of non-UTF-8 separators,this implementation will take a performance hit by making a copy of the
input string and replacing the separator with 'T'.
Co-authored-by: Alexey Izbyshev izbyshev@ispras.ru
Co-authored-by: Paul Ganssle paul@ganssle.io
(cherry picked from commit 096329f)
Co-authored-by: Paul Ganssle pganssle@users.noreply.github.com
https://bugs.python.org/issue34454