[issue20049] string.lowercase and string.uppercase can contain garbage

[Antoine Pitrou]

Antoine Pitrou added the comment:

As to whether we will add a workaround for this in Python:

- Python follows POSIX correctly here, and no issue was reported in mainstream OSes such as Linux, OS X or the *BSDs

- this only exists in 2.7, which is in extended maintenance mode (it's the last of the 2.x series, and will probably stopped being maintained in a few years); Python 3.x doesn't have this issue

- IllumOS is a rather niche OS that none of us is using, so adding a system-specific workaround doesn't sound very compelling

Thanks for reporting, though. It's good to be reminded that locales and ctype.h are a rather lousy design :-)

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<http://bugs.python.org/issue20049>
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