Ross Biro added the comment:
I'm currently writing a language translator between two domain specific
computer languages. Because some expressions occur repeatedly, but in
slightly different contexts, I make multiple passes. The first pass
reduces everything it can and leaves place holder
New submission from Ross Biro :
The only point in the string.Formatter class that really depends on string
output is line 245: return ''.join(result), auto_arg_index.
I'm currently working on a problem that would be much easier if I could get
access to the result list instead of having
