Moving from Python 2 to Python 3: A 4 page "cheat sheet"
John Posner
jjposner at optimum.net
Wed Dec 2 17:49:43 EST 2009
On Wed, 02 Dec 2009 13:34:11 -0500, Carsten Haese
<carsten.haese at gmail.com> wrote:
>
> With string interpolation, you don't need to do that, either.
>>>> '%*d' % (8,456)
> ' 456'
>
Thanks, Carsten and Mark D. -- I'd forgotten about the use of "*" in
minimum-field-width specs and precision specs (doh). How about this:
"pi={1:.{0}f} e={2:.{0}f}".format(5, math.pi, math.e)
(result: 'pi=3.14159 e=2.71828')
Can the Python2 %-formating facility handle this without repeating the "5"
argument?
Even if it can, I stand by my original suggestion: include an example to
show that the arguments to str.format() can be used on both the left and
the right of a ":" in a replacement field.
-John
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