[Python-Dev] Re: Update PEP 292
Anders J. Munch
ajm at flonidan.dk
Tue Aug 24 13:42:06 CEST 2004
>From Brett C. [mailto:bac at OCF.Berkeley.EDU]
>
> That is coming down to a question of convenience compared to
> explicitness. Do we want "Give me $1,000,000 now!" to raise
> ValueError,
> or do we want to let it pass through?
This particular problem has been considered and decided on years ago,
in the context of %-interpolation:
>>> "Give me %1,000,000 now!" % {}
ValueError: unsupported format character ',' (0x2c) at index 10
String interpolation with named parameters given as a dictionary is a
problem already solved in Python. I am puzzled at this urge to
re-solve the same problem, only differently.
If remembering to type the trailing s in "%(varname)s" is so much of a
problem, why not extend the current interpolation syntax with a
variation that is more convenient, yet still backwards-compatible? I
would suggest a formatting-character-less version of "%(varname)s"
that uses brackets instead: "%[varname]".
dollar-signs?-we-don't-need-no-steenkin-dollar-signs-ly y'rs, Anders
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