On May 27, 10:52 am, Peter Otten <__pete...@web.de> wrote:
> This is a longstanding quirk of the CPython implementation. The
> PRINT_ITEM_TO opcode triggers a PyFile_WriteObject() call which in turn does
> the C equivalent of
>
> if isinstance(f, file):
> file.write(f, s)
> else:
> write = ge
I don't understand the behavior of the print statement when streaming
to a "file-like" object. From the documentation at
http://www.python.org/doc/2.4.4/ref/print.html I understand that the
file-like object needs to have a write() method that - I assume - is
called when the print statement is invok
On Oct 19, 1:49 pm, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Andreas Kraemer <[EMAIL PROTECTED]> wrote:
> >> The only other behaviours I would regard as intuitive for iteration over
> >> a mutating sequence would be to throw an exception either for mutating
>
On Oct 18, 4:39 pm, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> Hi,
> Does any one know whare I can find some code to phrase a rss feeds?
> Thank you,
> Ted
Try http://feedparser.org/
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On Oct 18, 2:25 am, Duncan Booth <[EMAIL PROTECTED]> wrote:
> Steven D'Aprano <[EMAIL PROTECTED]> wrote:
> >> Note that the starting index is determined at creation time, not when
> >> the iteration begins. So, if you create a reversed object over a list
> >> containing 3 elements, the first return
On Oct 17, 9:31 pm, Steven D'Aprano <[EMAIL PROTECTED]
cybersource.com.au> wrote:
> I don't understand how reversed() is operating. I've read the description
> in the docs:
>
> reversed(seq)
> Return a reverse iterator. seq must be an object which supports the
> sequence protocol (the __len__() met
On Oct 11, 1:42 pm, Erik Jones <[EMAIL PROTECTED]> wrote:
> On Oct 11, 2007, at 2:25 PM, Andreas Kraemer wrote:
>
> > On Oct 11, 10:17 am, Erik Jones <[EMAIL PROTECTED]> wrote:
>
> >> No, duck typing and inheritance are two different things. Duck
> &
On Oct 11, 10:17 am, Erik Jones <[EMAIL PROTECTED]> wrote:
> No, duck typing and inheritance are two different things. Duck
> typing is when you implement the same operations as another object or
> class, whereas with inheritance you get the same implementation as
> that of the parent class.
Exc
> > [...]In fact, now that I think of it, get_key
> > is probably a bad name for it, get_other_object_with_this_same_key is
> > probably more apt :)
>
> Or more precise:
> get_key_that_was_used_when_value_was_inserted_into_dictionary :-)
Or even more precisely:
get_key_obj
On Oct 10, 9:00 pm, Erik Jones <[EMAIL PROTECTED]> wrote:
> If you're sure that 1. this use case won't grow and 2. that you'll
> only be the only person ever using code, then it's your choice of
> preference. Both of those points are equally important. 1 is a
> manageability issue in that you ar
On Oct 10, 6:19 pm, Karlo Lozovina <[EMAIL PROTECTED]> wrote:
> Larry Bates wrote:
> > I'm not completely sure I understand the question but here goes.
> > Instances of
> > classes are classes can be stored in lists or dictionaries. In lists you
> > reference them via their index (or iterate over
On Oct 9, 9:18 pm, Erik Jones <[EMAIL PROTECTED]> wrote:
> So, do you not keep references to your nodes anywhere but the actual
> graph dict? I kind of agree with Chris here in that two dicts will
> work. One for the nodes, indexed by their strings.
Yes, I guess that's exactly what I want. To kee
From: Chris Mellon <[EMAIL PROTECTED]>
Sent: Tuesday, October 9, 2007 1:51:04 PM
> Because, by definition, if you have the key then you don't need to get
> it from the dict. What you're doing here is conflating 2 mappings into
> one: string value->person and person->values. Use 2 explicit dicts t
I sometimes find it useful to store meta data on dictionary keys, like in the
following example:
class Dict(dict):
def __init__(self,*args,**kw):
self.key_dict = {}
super(Dict,self).__init__(*args,**kw)
def __setitem__(self,k,v):
self.key_dict[k] = k
super(Dict,self).__setitem
Hi everyone,
I know that the subject of mutable objects as dictionary keys has been
discussed a number of times in this forum (see for instance "freezing" of
classes), but I would love to hear the thoughts of the experts on the approach
below.
The use case that I encounter frequently is the c
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