Re: [PyKDE] Can I use QString as key in Python dictionary?
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Sebastian Kügler schrieb:
> On Thursday 02 June 2005 04:10, Matej Cepl wrote:
>
>>I have this simple dialog in PyQt, but whenever I press any item in
>>the list (or click OK), I get this error:
>>
>>chelcicky:pycatsel$ ./pycatsel
>>Traceback (most recent call last):
>> File
>>"/home/matej/archiv/programky/vim-qadas/pycatsel/selectCode.py",\
>>line 148, in Quit
>>note = unicode(self.dictCategories[key])
>>KeyError: <__main__.qt.QString object at 0xb7e12c5c>
>>chelcicky:pycatsel$
>>
>>Does anybody have any idea, what's wrong? Can I use QString as a key
>>in Python dictionary (both key and dict's values are QStrings)?
>
>
from qt import *
QString("foo") is QString("foo")
>
> False
>
> As you can see these two QString are different objects, so there's
> actually no such key.
>
>
k = QString("bla")
mydict = {QString("bla"):"foobar"}
mydict[k]
>
> Traceback (most recent call last):
> File "", line 1, in ?
> KeyError:
>
> As you can see, it yields a KeyError because k is actually no key in
> mydict. However, you can use a QString as a key, but you have to use
> exactly that reference (not a *similar* one):
>
>
k = QString("bla")
mydict = {k:"foobar"}
mydict[k]
>
> 'foobar'
One could think about changing the QString implementation of __hash__ to use the
strings's contents only. This shouldn't be too difficult (although I didn't try
it out, so I'm probably wrong.).
greetings
Torsten
- --
Torsten Marek <[EMAIL PROTECTED]>
ID: A244C858 -- FP: 1902 0002 5DFC 856B F146 894C 7CC5 451E A244 C858
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Re: [PyKDE] Can I use QString as key in Python dictionary?
On Thursday 02 June 2005 04:10, Matej Cepl wrote:
> I have this simple dialog in PyQt, but whenever I press any item in
> the list (or click OK), I get this error:
>
> chelcicky:pycatsel$ ./pycatsel
> Traceback (most recent call last):
> File
> "/home/matej/archiv/programky/vim-qadas/pycatsel/selectCode.py",\
> line 148, in Quit
> note = unicode(self.dictCategories[key])
> KeyError: <__main__.qt.QString object at 0xb7e12c5c>
> chelcicky:pycatsel$
>
> Does anybody have any idea, what's wrong? Can I use QString as a key
> in Python dictionary (both key and dict's values are QStrings)?
>>> from qt import *
>>> QString("foo") is QString("foo")
False
As you can see these two QString are different objects, so there's
actually no such key.
>>> k = QString("bla")
>>> mydict = {QString("bla"):"foobar"}
>>> mydict[k]
Traceback (most recent call last):
File "", line 1, in ?
KeyError:
As you can see, it yields a KeyError because k is actually no key in
mydict. However, you can use a QString as a key, but you have to use
exactly that reference (not a *similar* one):
>>> k = QString("bla")
>>> mydict = {k:"foobar"}
>>> mydict[k]
'foobar'
Cheers,
sebas
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[PyKDE] Can I use QString as key in Python dictionary?
Hi, I have this simple dialog in PyQt, but whenever I press any item in the list (or click OK), I get this error: chelcicky:pycatsel$ ./pycatsel Traceback (most recent call last): File "/home/matej/archiv/programky/vim-qadas/pycatsel/selectCode.py",\ line 148, in Quit note = unicode(self.dictCategories[key]) KeyError: <__main__.qt.QString object at 0xb7e12c5c> chelcicky:pycatsel$ Does anybody have any idea, what's wrong? Can I use QString as a key in Python dictionary (both key and dict's values are QStrings)? Thanks a lot, Matej -- Matej Cepl, http://www.ceplovi.cz/matej GPG Finger: 89EF 4BC6 288A BF43 1BAB 25C3 E09F EF25 D964 84AC 138 Highland Ave. #10, Somerville, Ma 02143, (617) 623-1488 I am a Roman Catholic, so that I do not expect `history' to be anything but a `long defeat' -- though it contains (and in a legend may contain more clearly and movingly) some samples or glimpses of final victory. -- J.R.R. Tolkien pycatsel.tar.bz2 Description: BZip2 compressed data ___ PyKDE mailing listPyKDE@mats.imk.fraunhofer.de http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
Re: [PyKDE] Re: [Eric] How to use ipython ?
Am Mittwoch, 1. Juni 2005 14:20 schrieb Diez B. Roggisch: > > Actually the IPython feature I'm the most missing, if not the only one, > > is completion. This is a valuable improvement over the standard python > > interpreter, when in the implementation/testing phase ; that's why it > > made sense to me to have IPython run "inside" a python IDE... > > My eric has tab-completion working in it's interpreter already - in form of > a window popping up giving me the possible choices. Which is nice, but > could IMHO enhanced a great deal by implementing in incrementally, like the > autocompletion in scintill. It has the scintilla autocompletion as well > Any chances we see that coming, Detlev? I'll look into this for the 3.8 development, but won't promise anything. > > Regards, > > Diez > > ___ > PyKDE mailing listPyKDE@mats.imk.fraunhofer.de > http://mats.imk.fraunhofer.de/mailman/listinfo/pykde Detlev -- Detlev Offenbach [EMAIL PROTECTED] ___ PyKDE mailing listPyKDE@mats.imk.fraunhofer.de http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
Re: [PyKDE] Re: [Eric] How to use ipython ?
> Actually the IPython feature I'm the most missing, if not the only one, is > completion. This is a valuable improvement over the standard python > interpreter, when in the implementation/testing phase ; that's why it made > sense to me to have IPython run "inside" a python IDE... My eric has tab-completion working in it's interpreter already - in form of a window popping up giving me the possible choices. Which is nice, but could IMHO enhanced a great deal by implementing in incrementally, like the autocompletion in scintill. Any chances we see that coming, Detlev? Regards, Diez ___ PyKDE mailing listPyKDE@mats.imk.fraunhofer.de http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
[PyKDE] Re: [Eric] How to use ipython ?
On Tuesday 31 May 2005 18:59, Detlev Offenbach wrote: > Hi, > > I haven't tried this and actually I don't see the need for it. Actually the IPython feature I'm the most missing, if not the only one, is completion. This is a valuable improvement over the standard python interpreter, when in the implementation/testing phase ; that's why it made sense to me to have IPython run "inside" a python IDE... > IPython's > features will most probably not show up in the Python shell of the IDE. The > "Custom python interpreter" is meant to name a python interpreter to run > the debugger client side. I'm not sure I understood correctly : is the interpreter appearing at the bottom of Eric the one that runs the debugger client side ? Cheers, Nicolas ___ PyKDE mailing listPyKDE@mats.imk.fraunhofer.de http://mats.imk.fraunhofer.de/mailman/listinfo/pykde
