On 01/02/2014 03:21 AM, Steven D'Aprano wrote:
On Wed, Jan 01, 2014 at 02:49:17PM +0100, spir wrote:
On 01/01/2014 01:26 AM, Steven D'Aprano wrote:
On Tue, Dec 31, 2013 at 03:35:55PM +0100, spir wrote:
[...]
I take the opportunity to add a few features, but would do
without Source altogether
On Wed, Jan 01, 2014 at 02:49:17PM +0100, spir wrote:
> On 01/01/2014 01:26 AM, Steven D'Aprano wrote:
> >On Tue, Dec 31, 2013 at 03:35:55PM +0100, spir wrote:
[...]
> I take the opportunity to add a few features, but would do
> without Source altogether if it were not for 'i'.
> The reason is: it
On 01/01/2014 01:26 AM, Steven D'Aprano wrote:
On Tue, Dec 31, 2013 at 03:35:55PM +0100, spir wrote:
Hello,
I don't remember exactly how to do that. As an example:
class Source (str):
__slots__ = ['i', 'n']
def __init__ (self, string):
self.i = 0 # current m
On Tue, Dec 31, 2013 at 7:26 PM, Steven D'Aprano wrote:
>
> from collections import namedtuple
>
> class Source(namedtuple("Source", "string i n")):
> def __new__(cls, string, i=0, n=None):
> if n is None:
> n = len(string)
> return super(Source, cls).__new__(cls, s
On Tue, Dec 31, 2013 at 03:35:55PM +0100, spir wrote:
> Hello,
>
> I don't remember exactly how to do that. As an example:
>
> class Source (str):
> __slots__ = ['i', 'n']
> def __init__ (self, string):
> self.i = 0 # current matching index in source
> sel
On 31/12/2013 21:11, Mark Lawrence wrote:
On 31/12/2013 17:53, eryksun wrote:
Refer to the language reference:
http://docs.python.org/3/reference/datamodel.html#notes-on-using-slots
Not found on the windows CHM file. Looks like another bug report to
keep our lazy, bone idle core developers
On 31/12/2013 17:53, eryksun wrote:
On Tue, Dec 31, 2013 at 11:21 AM, Mark Lawrence wrote:
The glossary entry for __slots__ states "A declaration inside a class that
saves memory by pre-declaring space for instance attributes and eliminating
instance dictionaries. Though popular, the technique
On 12/31/2013 06:53 PM, eryksun wrote:
On Tue, Dec 31, 2013 at 11:21 AM, Mark Lawrence wrote:
The glossary entry for __slots__ states "A declaration inside a class that
saves memory by pre-declaring space for instance attributes and eliminating
instance dictionaries. Though popular, the techniq
On Tue, Dec 31, 2013 at 11:53 AM, eryksun wrote:
> Minor correction:
>
> It says str requires empty __slots__, but that's a bug in the docs.
> It's referring to 2.x str. Else this thread wouldn't exist. In 3.x,
> str is basically the unicode type from 2.x. Its __itemsize__ is 0
> because the char
On Tue, Dec 31, 2013 at 11:21 AM, Mark Lawrence wrote:
> The glossary entry for __slots__ states "A declaration inside a class that
> saves memory by pre-declaring space for instance attributes and eliminating
> instance dictionaries. Though popular, the technique is somewhat tricky to
> get right
On Tue, Dec 31, 2013 at 10:21 AM, Mark Lawrence wrote:
> The glossary entry for __slots__ states "A declaration inside a class that
> saves memory by pre-declaring space for instance attributes and eliminating
> instance dictionaries. Though popular, the technique is somewhat tricky to
> get right
On 31/12/2013 15:54, Zachary Ware wrote:
On Tue, Dec 31, 2013 at 9:22 AM, spir wrote:
Thank you, Oscar & Zachary. I guess thus the way it is done is correct (for
my case), is it? Seems your last remark shows the source of my confusion:
probably, in past times, I subtyped builtin types and overr
On Tue, Dec 31, 2013 at 9:22 AM, spir wrote:
> Thank you, Oscar & Zachary. I guess thus the way it is done is correct (for
> my case), is it? Seems your last remark shows the source of my confusion:
> probably, in past times, I subtyped builtin types and overrided their
> __new__, thus had to call
On Tue, Dec 31, 2013 at 9:35 AM, spir wrote:
>
> I[n] particular, how does python know which param to take as
> source string? (There could be other params to __init__.)
You override __new__, and you might also have to override __init__,
but not in this case. object.__init__ ignores the extra arg
On 12/31/2013 04:03 PM, Zachary Ware wrote:
On Tue, Dec 31, 2013 at 8:35 AM, spir wrote:
Hello,
I don't remember exactly how to do that. As an example:
class Source (str):
__slots__ = ['i', 'n']
def __init__ (self, string):
self.i = 0 # current matching ind
On Tue, Dec 31, 2013 at 8:35 AM, spir wrote:
> Hello,
>
> I don't remember exactly how to do that. As an example:
>
> class Source (str):
> __slots__ = ['i', 'n']
> def __init__ (self, string):
> self.i = 0 # current matching index in source
> self.n = len(
On Dec 31, 2013 2:37 PM, "spir" wrote:
>
> Hello,
>
> I don't remember exactly how to do that. As an example:
>
> class Source (str):
> __slots__ = ['i', 'n']
> def __init__ (self, string):
> self.i = 0 # current matching index in source
> self.n = len(stri
Hello,
I don't remember exactly how to do that. As an example:
class Source (str):
__slots__ = ['i', 'n']
def __init__ (self, string):
self.i = 0 # current matching index in source
self.n = len(string)# number of ucodes (Unicode code points)
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