Home Original page

[Python-Dev] RFC: PEP 460: Add bytes % args and bytes.format(args) to Python 3.5

Eric V. Smith eric at trueblade.com
Mon Jan 6 15:54:09 CET 2014 
On 01/06/2014 09:50 AM, Xavier Morel wrote:
> On 2014-01-06, at 14:44 , Antoine Pitrou <solipsis at pitrou.net> wrote:
>>> Then,
>>> the following points must be decided to define the complete list of
>>> supported features (formatters):
>>>
>>> * Format integer to hexadecimal? ``%x`` and ``%X``
>>> * Format integer to octal? ``%o``
>>> * Format integer to binary? ``{!b}``
>>> * Alignment?
>>> * Truncating? Truncate or raise an error?
>>
>> Not desirable IMHO. bytes formatting should serve mainly for templating
>> situations (i.e. catenate and insert bytestrings into one another). We
>> cannot start giving text-like semantics to bytes objects without
>> confusing non-experts.
> 
> But having at least some of struct's formatting options available on
> bytes.format or bytes % would be useful.

Perhaps, but the PEP's stated goal is to make porting between 2.x and
3.5 easier. Add struct formatting to 3.5 wouldn't help.

Eric.
More information about the Python-Dev mailing list