[Python-Dev] transitioning from % to {} formatting

Eric Smith eric at trueblade.com
Thu Oct 8 16:24:33 CEST 2009

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.


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