Most people disagree with the original idea (len.diff: truncate the 
length to sys.maxsize).

I don't like rbp's patch: replace verbose error message ("Python int 
too large to convert to C ssize_t") by a shorter message ("Length too 
large"). If I want to debug my program, I prefer longer error 
messages. The original message contains the C type: ssize_t, useful 
information.

I dislike both patches. Can we close this issue with 
resolution=invalid?