Message 125556 - Python tracker

I tried full_source_and_error.zip on Windows and it failed. With stdio_binary.patch (attached to #10841), it works but I get an unicode file instead of a binary file. With stdio_binary.patch+cgi_plus_tests.diff it works as expected: I get a binary file (bytes).

But I don't understand why I have to pass an text stream (sys.stdin) instead of a binary stream (sys.stdin.buffer) to the FieldStorage constructor.