[Python-ideas] Make bytes __repr__ and __str__ representation different?
steve at pearwood.info
Tue Nov 21 10:16:23 EST 2017
On Tue, Nov 21, 2017 at 05:37:36PM +0300, Kirill Balunov wrote:
> Currently, __repr__ and __str__ representation of bytes is the same.
> Perhaps it is worth making them different, this will make it easier to
> visually perceive them as a container of integers from 0 to 255,
> instead of a mixture of printable and non-printable ascii characters. It is
> a) __str__ - leave unchanged
> b) __repr__ - represent as sequence of escaped hex
> >>> a = bytes([42,43,44,45,46])
> >>> a # Current
> >>> a # Proposed
I'd rather leave __str__ and __repr__ alone. Changing them will have
huge backwards compatibility implications. I'd rather give bytes a
hexdump() method that returns a string:
'2a 2b 2d 2e 2f'
(possibly with optional arguments to specify the formatting).
> As you can see, the second example is more easily perceived as a sequence,
> in which '\' is also perceived as ',' in list or tuple.
I disagree. And if you perceive \ as a separator, why does the sequence
start with a separator? And why are there so many x characters?
> In addition, 2020
> is close, it allows the new Pythonistas not to take them as an ascii
> mixture strings.
The special role of ASCII is far too important for us to ever completely
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