On Mar 18, 4:19 pm, Matt Nordhoff <mnordh...@mattnordhoff.com> wrote:
> bdb112 wrote:
> > Thanks for all the replies:
> > I think I see now - % is a binary operator whose precedence rules are
> > shared with the modulo operator regardless of the nature of its
> > arguments, for language consistency.
> > I understand the arguments behind the format method, but hope that the
> > slightly idiosyncratic print( ..% ..) remains, as the vaguely
> > pictorial "printf" format string is clearer for a long line with
> > several arguments.
> > I will use the "implicit string concatenation" to solve my problem but
> > it is a little odd that an "invisible" operator is stronger than a
> > visible one. (+).
>
> The implicit string concatenation is actually done by the compiler; it
> isn't an operator at all. Look:
>
> >>> import dis
> >>> def f():
>
> ... return "foo" "bar"
> ...>>> dis.dis(f)
>
> 2 0 LOAD_CONST 1 ('foobar')
> 3 RETURN_VALUE
> --
I think you need better evidence than that obtained by proctologising
about with dis.dis:
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit
(Intel)] onwin32
Type "help", "copyright", "credits" or "license" for more information.
>>> import dis
>>> def f():
... return ('foo') + ('bar')
...
>>> dis.dis(f)
2 0 LOAD_CONST 3 ('foobar')
3 RETURN_VALUE
>>>
Cheers,
John
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