[Python-Dev] transitioning from % to {} formatting (original) (raw)
MRAB python at mrabarnett.plus.com
Thu Oct 8 17:52:20 CEST 2009
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Eric Smith wrote:
Vinay Sajip wrote:
BTW I sent Eric a private mail re. the "0o" versus "0" issue, to see if it was worth raising an enhancement request on the bug tracker using "O" to generate compatible rendering for octals. I didn't get your message, could you resend?. I was thinking the same thing, but it seems like a transition step. I'd rather not keep such backward compatibility hacks (if you will) around for the long haul. How about a flag (maybe '*') at the start of the format specification which says "operate in backward compatibility mode"? We could document it as being only useful for the % to {} translator, and promise to remove it at some point in the future. Either actually deprecate it or just promise to deprecate it in the future. I think the flag should be '%'.
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