[Python-Dev] transitioning from % to {} formatting (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Sat Oct 3 03:29:06 CEST 2009


Has anyone considered the idea of having the string % operator behave intelligently according to the contents of the format string?

If it contains one or more valid %-formats, use old-style formatting; if it contains one or more valid {}-formats, use new-style formatting.

Ambiguous cases could arise, of course, but hopefully they will be fairly rare, and raising an exception would point out the problem and allow it to be fixed.

-- Greg



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