«

How is possible that I can print a variable, but when I use *return
var* it returns an empty string

http://paste.pocoo.org/show/97588/

Kless schrieb:
> How is possible that I can print a variable, but when I use *return
> var* it returns an empty string
>
> http://paste.pocoo.org/show/97588/

I don't see anything that indicates that the returned object is the
empty string. Simply because there is no code testing for that. And of
course you don't show any debugging output, which doesn't help either.

Diez

On 3 ene, 19:12, "Diez B. Roggisch" <de...@nospam.web.de> wrote:
> Kless schrieb:
>
> > How is possible that I can print a variable, but when I use *return
> > var* it returns an empty string
>
> >http://paste.pocoo.org/show/97588/
>
> I don't see anything that indicates that the returned object is the
> empty string. Simply because there is no code testing for that. And of
> course you don't show any debugging output, which doesn't help either.
>
> Diez

Afghanistan
AF
Out[19]: u'AF'
AFG
Out[19]: u'AFG'
004
Out[19]: u'004'

On Jan 3, 11:20*am, Kless <jonas....@googlemail.com> wrote:
> On 3 ene, 19:12, "Diez B. Roggisch" <de...@nospam.web.de> wrote:
>
> > Kless schrieb:
>
> > > How is possible that I can print a variable, but when I use *return
> > > var* it returns an empty string
>
> > >http://paste.pocoo.org/show/97588/
>
> > I don't see anything that indicates that the returned object is the
> > empty string. Simply because there is no code testing for that. And of
> > course you don't show any debugging output, which doesn't help either.
>
> > Diez
>
> Afghanistan
> AF
> Out[19]: u'AF'
> AFG
> Out[19]: u'AFG'
> 004
> Out[19]: u'004'

What?

On 3 ene, 19:40, Simon Forman <sajmik...@gmail.com> wrote:
> On Jan 3, 11:20*am, Kless <jonas....@googlemail.com> wrote:
>
> > Afghanistan
> > AF
> > Out[19]: u'AF'
> > AFG
> > Out[19]: u'AFG'
> > 004
> > Out[19]: u'004'
>
> What?

That's the output got from ipython. As you can see, it prints
'Afghanistan' but it can not returns it. In change, the another
strings are returned.

Could it be because it isn't returning the value from the
recursivecall?

Kless schrieb:
> On 3 ene, 19:12, "Diez B. Roggisch" <de...@nospam.web.de> wrote:
>> Kless schrieb:
>>
>>> How is possible that I can print a variable, but when I use *return
>>> var* it returns an empty string
>>> http://paste.pocoo.org/show/97588/
>> I don't see anything that indicates that the returned object is the
>> empty string. Simply because there is no code testing for that. And of
>> course you don't show any debugging output, which doesn't help either.
>>
>> Diez
>
> Afghanistan
> AF
> Out[19]: u'AF'
> AFG
> Out[19]: u'AFG'
> 004
> Out[19]: u'004'

What is that? IPython? And I don't see no empty string here. *What* I
see is the way python's interactive prompt puts out strings, like this:

>>> unicode("foo")
u'foo'

Do you mean by any chance that you don't understand why print prints
foo, but the prompt shows u"foo"? That is because the prompt invokes

repr(o)

to print out an object:

>>> print repr(unicode("foo"))
u'foo'

Which means that the output includes quotes and the "u"-prefix in case
of an unicode object to help the user to see what the current object
looks like.

Diez

Kless schrieb:
> On 3 ene, 19:40, Simon Forman <sajmik...@gmail.com> wrote:
>> On Jan 3, 11:20 am, Kless <jonas....@googlemail.com> wrote:
>>
>>> Afghanistan
>>> AF
>>> Out[19]: u'AF'
>>> AFG
>>> Out[19]: u'AFG'
>>> 004
>>> Out[19]: u'004'
>> What?
>
> That's the output got from ipython. As you can see, it prints
> 'Afghanistan' but it can not returns it. In change, the another
> strings are returned.
>
> Could it be because it isn't returning the value from the
> recursivecall?

Yep, I guess that's the problem. You need to do

if cell_tag:
return clean_tags(cell_tag)


Diez

On Sat, 03 Jan 2009 11:46:10 -0800, Kless wrote:

> On 3 ene, 19:40, Simon Forman <sajmik...@gmail.com> wrote:
>> On Jan 3, 11:20Â*am, Kless <jonas....@googlemail.com> wrote:
>>
>> > Afghanistan
>> > AF
>> > Out[19]: u'AF'
>> > AFG
>> > Out[19]: u'AFG'
>> > 004
>> > Out[19]: u'004'
>>
>> What?
>
> That's the output got from ipython. As you can see, it prints
> 'Afghanistan' but it can not returns it. In change, the another strings
> are returned.

Maybe you should show the *input* too…

Ciao,
Marc 'BlackJack' Rintsch

On 3 ene, 19:51, "Diez B. Roggisch" <de...@nospam.web.de> wrote:
> Kless schrieb:
>
>
>
> > On 3 ene, 19:40, Simon Forman <sajmik...@gmail.com> wrote:
> >> On Jan 3, 11:20 am, Kless <jonas....@googlemail.com> wrote:
>
> >>> Afghanistan
> >>> AF
> >>> Out[19]: u'AF'
> >>> AFG
> >>> Out[19]: u'AFG'
> >>> 004
> >>> Out[19]: u'004'
> >> What?
>
> > That's the output got from ipython. As you can see, it prints
> > 'Afghanistan' but it can not returns it. In change, the another
> > strings are returned.
>
> > Could it be because it isn't returning the value from the
> > recursivecall?
>
> Yep, I guess that's the problem. You need to do
>
> if cell_tag:
> * * return clean_tags(cell_tag)
>
> Diez

Thank you very much. It works now.

2009/1/3 Kless <>:
> How is possible that I can print a variable, but when I use *return
> var* it returns an empty string

What makes you think it's returning an empty string? You aren't doing
anything with the return value in line 26 of your example.

--
Cheers,
Simon B.