> IIUC, key-sharing dicts are a best-effort optimization where if I have
> a class like:
>
> class Foo:
> def __init__(self, a, b):
> self.a = a
> self.b = b
>
> f1 = Foo(1, 2)
> f2 = Foo(3, 4)
>
> then f1.__dict__ and f2.__dict__ can share their key arrays... but if
> I do f1.c
On Tue, Jun 21, 2016 at 8:40 PM, INADA Naoki wrote:
> There are three options I can think.
>
>
> 1) Revert key-shared dict (PEP412).
>
> pros: Removing key-shared dict makes dict implementation simple.
>
> cons: In some applications, PEP 412 is far more compact than compact
> ordered dict. (Note:
"Er, among our chief weapons are fear, surprise, ctypes, gc, and fanatical
devotion to the Pope!"
On Thu, Jun 23, 2016 at 1:03 PM, Devin Jeanpierre
wrote:
> On Thu, Jun 23, 2016 at 8:19 AM, Guido van Rossum
> wrote:
>>
>> It was a long time when I wrote this, but IIRC the breakage could expres
On Thu, Jun 23, 2016 at 8:19 AM, Guido van Rossum wrote:
>
> It was a long time when I wrote this, but IIRC the breakage could express
> itself as a segfault or other C-level crash due to some internal state
> invariant of the type object being violated, not just an exception. The
> existence of c
On Fri, Jun 24, 2016 at 12:03 AM, Eric Snow wrote:
> On Mon, Jun 20, 2016 at 11:02 PM, INADA Naoki wrote:
>> On Tue, Jun 21, 2016 at 12:17 PM, Oleg Broytman wrote:
>>> (if a PEP is needed at all)
>>
>> I don't think so. My PEP is not for changing Python Language,
>> just describe implementation
On Thu, Jun 23, 2016 at 8:01 AM, Random832 wrote:
> On Wed, Jun 22, 2016, at 11:11, Guido van Rossum wrote:
> > This is done in order to force all mutations of the class dict to go
> > through attribute assignments on the class. The latter takes care of
> > updating the class struct, e.g. if you
On Mon, Jun 20, 2016 at 11:02 PM, INADA Naoki wrote:
> On Tue, Jun 21, 2016 at 12:17 PM, Oleg Broytman wrote:
>> (if a PEP is needed at all)
>
> I don't think so. My PEP is not for changing Python Language,
> just describe implementation detail.
>
> Python 3.5 has new OrderedDict implemented in C
On Wed, Jun 22, 2016, at 11:11, Guido van Rossum wrote:
> This is done in order to force all mutations of the class dict to go
> through attribute assignments on the class. The latter takes care of
> updating the class struct, e.g. if you were to add an `__add__` method
> dynamically it would updat
I've checked time and maxrss of sphinx-build.
In case of sphinx,
## master
$ rm -rf build/
$ /usr/bin/time ~/local/python-master/bin/sphinx-build -b html -d
build/doctrees -D latex_paper_size= . build/html -QN
71.76user 0.27system 1:12.06elapsed 99%CPU (0avgtext+0avgdata
176248maxresident)k
8
