Is there an easy way to make string-formatting smart enough to
gracefully handle iterators/generators? E.g.
transform = lambda s: s.upper()
pair = ('hello', 'world')
print "%s, %s" % pair # works
print "%s, %s" % map(transform, pair) # fails
with a """
TypeError: not enough arguments for format string
"""
I can force it by wrapping the results of my generator in a call
to tuple() or list()
print "%s, %s" % tuple(map(transform, pair))
but it feels a bit hackish to me.
I find I hit it mostly with calls to map() where I want to apply
some transform (as above) to all the items in a list of
parameters such as
"%s=%s&%s=%s" % map(urllib.quote, params)
Any suggestions? (even if it's just "get over your hangup with
wrapping the results in list()/tuple()" :)
Thanks,
-tkc
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