[Python-Dev] converting the stdlib to str.format

[Georg Brandl]

Greg Ewing schrieb:
> Paul Moore wrote:
> 
>> Because the second breaks if value is a tuple:
> 
> However, changing it now is going to break a huge
> amount of existing code that uses %-formatting,
> and in ways that 2to3 can't reliably fix.
> 
> Keeping %-formatting but breaking a large
> proportion of its uses doesn't seem like a good
> idea to me.

Exactly. If % formatting is removed in 3k, code breaks, so we keep it.
Changing it now so that code breaks anyway is not productive :)

Georg

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