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Date: Mon, 2 Apr 2012 05:00:10 -0700 (PDT)
From: Yingjie Lan <lanyjie@yahoo.com>
Subject: Re: string interpolation for python
To: Chris Rebert <clp2@rebertia.com>
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Xref: csiph.com comp.lang.python:22461

> "Are you %(name)s" % locals() # or vars()=0A=0A=0A=0AThis partly solves t=
he problem, however, you=A0=0Acan't work with expressions inside, like:=0A=
=0A> d"sin($x$) =3D $sin(x)$"=0A=0A=0AAlso, what if locals() or vars() does=
 not contain=0Athe variable "x"? (x could be nonlocal or global).=0A=0A=0A>=
 It's more conservative than hostile. Here's some insight:=0A> http://www.b=
oredomandlaziness.org/2011/02/status-quo-wins-stalemate.html=0A>=0A=0AYou a=
re probably right...Harmless enhancement is still probable?=0A=0A=0A>=A0=0A=
> Personally, in isolation, the only part of your proposal I find=0A> /trul=
y/ objectionable is the support for arbitrary expressions, since=0A> it wou=
ld tend towards encouraging suboptimal factoring. But we also=0A=0AI don't =
quite see that as a problem. The compiler (or translator, as you=A0=0Amenti=
oned earlier) could easily make=A0d"sin($x$) =3D $sin(x)$" into=0Asomething=
 like: ''.join(["sin(", str(x), ") =3D ", str(sin(x))]=0Awhich would far mo=
re efficient than calling the format() method.=0A=0ACheers,=0AYingjie