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Date: Sat, 31 Dec 2011 13:24:10 -0600
From: Tim Chase <python.list@tim.thechases.com>
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To: Benjamin Kaplan <benjamin.kaplan@case.edu>
Subject: Re: .format vs. %
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Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:18269

On 12/31/11 12:57, Benjamin Kaplan wrote:
> format is a method of the string class. You store the string the same way
> you would any other.
>
> formatter = "Hello, {}"
> print(formatter.format("world"))

Just to note that this syntax doesn't quite work in some earlier 
versions (tested below in 2.6, which came stock in Debian Stable)

 >>> formatter = "Hello, {}"
 >>> print(formatter.format("world"))
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
ValueError: zero length field name in format


It needs to be spelled "{0}"

-tkc