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On 3/26/10 11:40 AM, Kristján Valur Jónsson wrote:
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<p class="MsoNormal">I just noticed that the stackless module has a
an attribute „stackless“
that points to itself.<o:p></o:p></p>
<p class="MsoNormal">This is highly irregular. I noticed this
because some of
the tests in stackless/test do<o:p></o:p></p>
<p class="MsoNormal">from stackless import *<o:p></o:p></p>
<p class="MsoNormal">and then proceed to do stuff such as<o:p></o:p></p>
<p class="MsoNormal">r = stackless.channel()<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I‘d like to remove this module self reference if
no
one objects.<o:p></o:p></p>
<tt><br>
</tt></div>
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<tt>The purpose of this irregularity was to be able to use<br>
'from stackless import *'<br>
and then to have access to the stackless module, still.<br>
The module is irregular itself, because it has computed<br>
attributes stackless.current and stackless.main.<br>
They were added because they are slightly faster than<br>
stackless.getcurrent() and stackless.getmain().<br>
<br>
This was done in pre-property early days.<br>
I think to remove computed attribute access from the<br>
stackless module, but maybe add a python object<br>
with the name stackless, instead, which has properties<br>
main and current added? This would be very fast with<br>
the new psyco support, which optimizes attribute access.<br>
<br>
Well, I can imagine you won't like that, either.<br>
Feel free to remove stackless.stackless, but then please<br>
also remove the extra attribute access code and make<br>
stackless a real module.<br>
The idea of computed module attributes was related to do<br>
some additions, like having certain checks done, to prevent<br>
overwriting of things and so on, but I don't think I did<br>
much more than considering.<br>
<br>
Btw., I don't like modules very much as they are. They<br>
really should have the layout of a singleton class instance<br>
with full control over attributes.<br>
<br>
And while we are at it: We should also try to get rid of<br>
the flextype module. It was done to provide faster access<br>
to overridable attributes. But I think it is no longer<br>
woth being carried around, and the concept was never<br>
understood by anybody, I think.<br>
<br>
It gives a bit of speedup for overridden methods, still,<br>
but again, in the light of coming psyco for stackless,<br>
this will become irrelevant, because in psyco, all those<br>
method lookups will be resolved at compile time.<br>
<br>
cheers - chris<br>
<br>
</tt>-- <br>
<pre class="moz-signature" cols="72">Christian Tismer :^) <a class="moz-txt-link-rfc2396E" href="mailto:tismer@stackless.com"><mailto:tismer@stackless.com></a>
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