Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment: The problem is with _WindowsConsoleIO.
C:\py\cpython>python.bat -u -c "import sys; sys.stdout.buffer.write(b'')" Running Release|Win32 interpreter... Traceback (most recent call last): File "<string>", line 1, in <module> OSError: [WinError 87] The parameter is incorrect ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue31966> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com