[Python-Dev] Removing Non-Unicode Support?
mal at egenix.com
Tue Feb 21 10:36:29 CET 2006
Martin v. Löwis wrote:
> M.-A. Lemburg wrote:
>> Note that this does not mean that we should forget about memory
>> consumption issues. It's just that if there's only marginal
>> interest in certain special builds of Python, I don't see the
>> requirement for the Python core developers to maintain them.
> Well, the cost of Unicode support is not so much in the algorithmic
> part, but in the tables that come along with it. AFAICT, everything
> but unicodectype is optional; that is 5KiB of code and 20KiB of data
> on x86. Actually, the size of the code *does* matter, at a second
> glance. Here are the largest object files in the Python code base
> on my system (not counting dynamic modules):
> text data bss dec hex filename
> 4845 19968 0 24813 60ed Objects/unicodectype.o
> 22633 2432 352 25417 6349 Objects/listobject.o
> 29259 1412 152 30823 7867 Objects/classobject.o
> 20696 11488 4 32188 7dbc Python/bltinmodule.o
> 33579 740 0 34319 860f Objects/longobject.o
> 34119 16 288 34423 8677 Python/ceval.o
> 35179 2796 0 37975 9457 Modules/_sre.o
> 26539 15820 416 42775 a717 Modules/posixmodule.o
> 35283 8800 1056 45139 b053 Objects/stringobject.o
> 50360 0 28 50388 c4d4 Python/compile.o
> 68455 4624 440 73519 11f2f Objects/typeobject.o
> 69993 9316 1196 80505 13a79 Objects/unicodeobject.o
> So it appears that dropping Unicode support can indeed provide
> some savings.
> For reference, we also have an option to drop complex numbers:
> 9654 692 4 10350 286e Objects/complexobject.o
So why not drop that as well ?
Note that I'm not saying that these switches are useless - of
course they do allow to strip down the Python interpreter.
I believe that only very few people are interested in having these
options and it's fair enough to put the burden of maintaining these
branches on them.
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