Formatting practices (was: Passing data to system command)

[Cameron Laird]

In article <mailman.7197.1150720173.27775.python-list at python.org>,
Chris Hieronymus  <christoph.hieronymus at geo.uu.se> wrote:
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>   msg = str(x)+"  "+str(y)+"\n"
>   p1.stdin.write(msg)
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While Python prides itself on the clarity of its preferred style,
note that the former line might just as well be written

    msg = "%s %s\n" % (x, y)

a form which some of us prefer.