New submission from Eryk Sun:
_PyIO_get_console_type currently hard codes the names "CON", "CONIN$", and
"CONOUT$" and doesn't use a case-insensitive comparison. For example, opening
"conin$" doesn't get directed to WindowsConsoleIO:
>>> open('conin$', 'rb', buffering=0)
<_io.FileIO name='conin$' mode='rb' closefd=True>
unlike CONIN$:
>>> open('CONIN$', 'rb', buffering=0)
<_io._WindowsConsoleIO mode='rb' closefd=True>
This also ignores the special handling of DOS devices in existing directories.
The normal DOS-device check (i.e. if the parent directory exists, call
GetFullPathName to normalize the path) isn't reliable, unfortunately. Prior to
Windows 8, CreateFile special-cases parsing console paths by calling
BaseIsThisAConsoleName, which has an annoying speed hack that makes it buggy.
Ultimately the only way to know if a path opens the console is to open it and
check the handle.
----------
components: IO, Library (Lib), Windows
messages: 276512
nosy: eryksun, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
stage: test needed
status: open
title: _PyIO_get_console_type fails for various paths
type: behavior
versions: Python 3.6, Python 3.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue28164>
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