[Python-Dev] Dropping bytes "support" in json

Chris Withers chris at simplistix.co.uk
Sat Apr 11 14:46:18 CEST 2009

glyph at divmod.com wrote:
> My preference would be that
>    message.headers['Subject'] = b'Some Bytes'
> would simply raise an exception.  If you've got some bytes, you should 
> instead do
>    message.bytes_headers['Subject'] = b'Some Bytes'

Remind me again why you need to differentiate between headers and 

I think bytes headers are evil. If you don't know the encoding when you 
have one, who does or ever will?

>    message.headers['Subject'] = Header(bytes=b'Some Bytes', 
> encoding='utf-8')
> Explicit is better than implicit, right?

Indeed, and the case for the above would be to keep indempotence of 
incoming messages in applications like mailman...

...otherwise we could just decode them and be done with it.



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