Antoon Pardon wrote:
> Taking this in consideration I think the io.RawIOBase.read got it
> backwards.
>
> The documentation says the following:
>
> | If 0 bytes are returned, and size was not 0, this indicates end of file.
> | If the object is in non-blocking mode and no bytes are available, None
> | is returned.
>
> But typically if you are reading in non-blocking mode, no bytes availabe
> can be treated as if you receive an empty (byte)string. While reaching the
> end of the stream is different. So it would have been more consistent if
> an empty (byte)string was return in case of no bytes availabe and None or
> io.EOF or something like that in case of end of file.
>
> Now I have to write things as follows:
>
> for block in iter(partial(RawStream.read, 1024), ''):
> if block is not None:
> for b in block
> process(b)
or
for block in ...:
for b in block or ():
process(b)
> Otherwise I could write it more as follows:
>
> for block in iter(partial(RawStream.read, 1024), io.EOF):
> for b in block
> process(b)
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