[Python-ideas] format specifier for "not bytes"

[Steven D'Aprano]

On 25/08/12 04:57, Daniel Holth wrote:
> Yes, if I wanted to pretend I was using JavaScript.

I'm not entirely sure what you are responding to here -- the context is
lost when you top post like that. I'm *guessing* that you are responding
to Antoine's advice to use concatenation.

If so, why do you think that concatenation is "pretending" to be using
Javascript? It is a perfectly valid operation in Python, and many languages
which predate Javascript include concatenation.



> A string-only formatter might cause problems with translation string /
> gettext type objects?
>
> On Fri, Aug 24, 2012 at 2:40 PM, Antoine Pitrou<solipsis at pitrou.net>  wrote:
>> On Fri, 24 Aug 2012 14:33:48 -0400
>> Daniel Holth<dholth at gmail.com>  wrote:
>>> String only would be perfect. I only single out bytes because they are more
>>> like strings than any other type.
>>
>> You can use concatenation instead of (or in addition to) formatting:
>>
>>>>> "" + "foo"
>> 'foo'
>>>>> "" + b"foo"
>> Traceback (most recent call last):
>>    File "<stdin>", line 1, in<module>
>> TypeError: Can't convert 'bytes' object to str implicitly
>>>>> "" + 42
>> Traceback (most recent call last):
>>    File "<stdin>", line 1, in<module>
>> TypeError: Can't convert 'int' object to str implicitly
>>
>> Regards
>>
>> Antoine.



-- 
Steven