On Thu, 26 Nov 2015 08:02 pm, fl wrote:
> Hi,
>
> I see the following from a previous post:
>
>
> Python 1.5.2 (#1, Aug 27 2012, 09:09:18) [GCC 4.1.2 20080704 (Red Hat
> 4.1.2-52)] on linux2
> Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>>> import dis
>>>> code = compile("(1, 2, 3)", "", "eval")
>>>> dis.dis(code)
> 0 SET_LINENO 0
> 3 LOAD_CONST 0 (1)
> 6 LOAD_CONST 1 (2)
> 9 LOAD_CONST 2 (3)
> 12 BUILD_TUPLE 3
> 15 RETURN_VALUE
This output is from Python 1.5, which is about 20 years old or so, and long
obsolete.
> When I run the above three line code, I get the following:
>
> dis.dis(code)
> 1 0 LOAD_CONST 3 ((1, 2, 3))
> 3 RETURN_VALUE
This output is (probably) from Python 2.7, which is much more recent. The
byte-code compiler is much smarter now than in old versions of Python.
By the way, this is a really good question! I especially like the fact that
you tried running the code for yourself first.
--
Steven
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