Hi pywikibot experts,

Just a little update about the 3rd method I found to automatically create
new properties: the use of the php script "importProperties.php" (
https://github.com/JeroenDeDauw/Wikibase/blob/master/repo/maintenance/importProperties.php
 ).

I simply modified the 'createProperty' function (
https://github.com/JeroenDeDauw/Wikibase/blob/master/repo/maintenance/importProperties.php#L147
),
as follows:

        /**
         * @param string[] $contents Associative array, mapping language
codes to labels.
         *
         * @return bool true if the item was created, false otherwise
         */
        private function createProperty( array $contents ) {
                $property = Property::newFromType( 'string' );
                $fingerprint = $property->getFingerprint();

                foreach ( $contents as $contents_to_be_split ) {
                        list($propertylabel_en, $propertydescription_en,
$propertylabel_it, $propertydescription_it) = explode("|",
$contents_to_be_split);
                        $fingerprint->setLabel( "en", $propertylabel_en );
                        $fingerprint->setDescription( "en",
$propertydescription_en );
                        $fingerprint->setLabel( "it", $propertylabel_it );
                        $fingerprint->setDescription( "it",
$propertydescription_it );
                }

                try {
                        $this->store->saveEntity( $property, 'imported',
$this->user, EDIT_NEW );
                        return true;
                } catch ( Exception $ex ) {
                        $this->doPrint( 'ERROR: ' . str_replace( "\n", ' ',
$ex->getMessage() ) );
                }

                return false;
        }


It works for more complex cases of fingerprints also containing
descriptions, and multiple languages (but it doesn't work for the creation
of statements into the new property)

In any case, I would really prefer a solution based on Pywikibot, as
described in my previous mail

Thanks for your attention!

On Wed, Mar 23, 2016 at 2:57 PM, comfortably numb <
[email protected]> wrote:

> Hi pywikibot experts,
>
> How can I create new properties via pywikibot? (I'm trying to do it via
> bot, because I'm doing some experiments on a dedicated wikibase
> installation with - possibly - hundreds of properties to be created... and
> Pywikibot would certainly be my favorite tool!)
>
> In case I have, instead, to directly wrap the action "wbeditentity" from
> mediawiki API (
> https://www.wikidata.org/w/api.php?action=help&modules=wbeditentity ),
> are there some Python examples?
>
> And, in case I have to use the php script "importProperties.php" (
> https://github.com/JeroenDeDauw/Wikibase/blob/master/repo/maintenance/importProperties.php
>  ),
> how can I manage properties more complex than the ones contained in the
> example (
> https://github.com/JeroenDeDauw/Wikibase/blob/master/repo/maintenance/en-elements-properties.csv
>  )?
>
>
> Using pywikibot, I'm able to MODIFY existing properties with instructions
> like the following ones (which let me generate the object-content in one
> shot via json ... as I need):
>
> In [1]: import pywikibot ; site = pywikibot.Site() ; repo =
> site.data_repository()
> In [2]: property_page = pywikibot.PropertyPage(repo, u"P2")
> In [3]: myjson = {u'descriptions': {u'en': {u'language': u'en', u'value':
> u'invented description'}}, u'labels': {u'en': {u'language': u'en',
> u'value': u'test property'}}}
> In [4]: property_page.editEntity(myjson)
>
> ...but I cannot CREATE new properties (instantiating a PropertyPage
> object), because pywikibot asks for the identifier of an existing instance:
>
> In [11]: p_page = pywikibot.PropertyPage(repo)
> ---------------------------------------------------------------------------
> InvalidTitle                              Traceback (most recent call last)
> <ipython-input-11-e72b812b8cd3> in <module>()
> ----> 1 p_page = pywikibot.PropertyPage(repo)
>
> /home/user/src/pywikibot_repo/pywikibot/page.pyc in __init__(self, source,
> title)
>    4027         if not title or not self.id.startswith('P'):
>    4028             raise pywikibot.InvalidTitle(
> -> 4029                 u"'%s' is not an property page title" % title)
>    4030         Property.__init__(self, source, self.id)
>    4031
>
> InvalidTitle: '' is not an property page title
>
> In [12]:
>
> In fact, as I understand, in the source code of the "WikibasePage" class,
> I see that
> while for the Item type, a "Special case for empty item" is mentioned (
> https://github.com/wikimedia/pywikibot-core/blob/master/pywikibot/page.py#L3760
>  )
>
>         # Special case for empty item.
>         if title is None or title == '-1':
>             super(ItemPage, self).__init__(site, u'-1', ns=ns)
>             assert self.id == '-1'
>             return
>
> ...for the Property type, instead, an empty object is NOT allowed (
> https://github.com/wikimedia/pywikibot-core/blob/master/pywikibot/page.py#L4168
>  )
>
>         if not title or not self.id.startswith('P'):
>             raise pywikibot.InvalidTitle(
>                 u"'%s' is not an property page title" % title)
>         Property.__init__(self, source, self.id)
>
>
> Thanks a lot for your attention!
>
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