Object_hook没有给出phpserialize

Question

I'm developing a python app using the library phpserialize. The problem is that now I'm facing an error and I can't find a way to solve it: I get this serialized data from a php web service:

a:5:{s:10:"attributes";a:53:{s:9:"entity_id";s:2:"97";s:14:"entity_type_id";s:1:"4";s:16:"attribute_set_id";s:1:"4";s:7:"type_id";s:6:"simple";s:3:"sku";s:5:"16101";s:10:"created_at";s:19:"2013-05-29 14:59:05";s:10:"updated_at";s:19:"2013-08-08 07:38:41";s:11:"has_options";s:1:"1";s:16:"required_options";s:1:"1";s:4:"name";s:65:"Cuchillo Tactico Combat-Tec negro Aitor dureza de 55/58 HRc 16101";s:10:"meta_title";s:87:"Comprar Cuchillo Tactico Combat-Tec negro Aitor dureza de 55/58 HRc 16101 8435076573875";s:16:"meta_description";s:200:"Comprar Cuchillo Tactico Combat-Tec negro Aitor dureza de 55/58 HRc 16101 8435076573875 hasta un 50% más económico que en tiendas. Miles de referencias a tu disposición. Envío Urgente. Infórmate!";s:5:"image";s:17:"/1/6/16101_37.png";s:11:"small_image";s:17:"/1/6/16101_37.png";s:9:"thumbnail";s:17:"/1/6/16101_37.png";s:7:"url_key";s:39:"cuchillo-tactico-combat-tec-negro-aitor";s:8:"url_path";s:44:"cuchillo-tactico-combat-tec-negro-aitor.html";s:13:"custom_design";N;s:17:"options_container";s:10:"container2";s:22:"gift_message_available";N;s:11:"page_layout";N;s:22:"country_of_manufacture";N;s:12:"msrp_enabled";s:1:"2";s:30:"msrp_display_actual_price_type";s:1:"4";s:7:"videoid";N;s:13:"c2c_long_hoja";s:4:"16.5";s:16:"c2c_espesor_hoja";s:3:"4.5";s:12:"manufacturer";N;s:5:"color";s:1:"1";s:6:"status";s:1:"1";s:12:"tax_class_id";s:1:"5";s:10:"visibility";s:1:"4";s:21:"enable_googlecheckout";s:1:"1";s:12:"is_recurring";s:1:"0";s:11:"is_imported";s:1:"0";s:9:"proveedor";s:2:"43";s:5:"price";s:7:"57.8100";s:6:"weight";s:6:"0.0000";s:13:"special_price";N;s:4:"cost";N;s:4:"msrp";N;s:17:"special_from_date";N;s:15:"special_to_date";N;s:14:"news_from_date";N;s:12:"news_to_date";N;s:18:"custom_design_from";N;s:16:"custom_design_to";N;s:11:"description";s:1672:"<p>Cuchillo AITOR modelo Combat-Tec con hoja negra de 16,5 Cm. con sierra superior. Acero Molibdeno Vanadio con prueba de dureza. Mango de micarta negra. Incluye funda de poliamida negra.</p><br /><table id="product-attribute-specs-table" class="data-table"><colgroup><col width="25%" /> <col /> </colgroup><br /><tbody><br /><trclass="first odd"><th class="label">C&oacute;digo</th><br /><td class="data last">16101</td><br /></tr><br /><tr class="even"><th class="label">Marcas</th><br /><td class="data last">Aitor</td><br /></tr><br /><tr class="odd"><thclass="label">Longitud hoja</th><br /><td class="data last">16.5</td><br /></tr><br /><tr class="even"><th class="label">Longitud total</th><br /><td class="data last">28</td><br /></tr><br /><tr class="odd"><th class="label">Material hoja</th><br /><td class="data last">Acero Aitor al cromo negro</td><br /></tr><br /><trclass="even"><th class="label">Funda</th><br /><td class="data last">No</td><br /></tr><br /><tr class="odd"><th class="label">Espesor hoja</th><br /><td class="data last">4.5</td><br /></tr><br /><tr class="even"><th class="label">Material mango</th><br /><td class="data last">Micarta</td><br /></tr><br /><tr class="odd"><th class="label">Presentaci&oacute;n</th><br /><td class="data last">Estuche de cart&oacute;n</td><br /></tr><br /><tr class="even"><thclass="label">Observaciones</th><br /><td class="data last">No</td><br /></tr><br /><tr class="odd"><th class="label">Peso</th><br /><td class="data last">291</td><br /></tr><br /><tr class="last even"><th class="label">C&oacute;digo EAN</th><br /><td class="data last">8435076573875</td><br /></tr><br /></tbody><br /></table>";s:17:"short_description";s:88:"Cuchillo Tactico Combat-Tec negro de la marca Aitor dureza de 55/58 HRc Referencia 16101";s:12:"meta_keyword";s:87:"Comprar Cuchillo Tactico Combat-Tec negro Aitor dureza de 55/58 HRc 16101 8435076573875";s:20:"custom_layout_update";N;s:10:"is_salable";s:1:"1";s:10:"stock_item";O:13:"Varien_Object":7:{s:8:"*_data";a:1:{s:11:"is_in_stock";s:1:"1";}s:18:"*_hasDataChanges";b:0;s:12:"*_origData";N;s:15:"*_idFieldName";N;s:13:"*_isDeleted";b:0;s:16:"*_oldFieldsMap";a:0:{}s:17:"*_syncFieldsMap";a:0:{}}}s:6:"custom";a:2:{s:9:"drop_down";a:1:{s:5:"abcde";a:3:{i:0;s:3:"123";i:1;s:3:"321";i:2;s:3:"231";}}s:5:"radio";a:1:{s:10:"Jajejijoju";a:3:{i:0;s:1:"G";i:1;s:1:"M";i:2;s:1:"P";}}}s:10:"categorias";a:5:{i:0;a:1:{s:16:"Default Category";s:12:"Root Catalog";}i:1;a:1:{s:7:"Default";s:16:"Default Category";}i:2;a:1:{s:12:"Cuchillería";s:7:"Default";}i:3;a:1:{s:9:"Cuchillos";s:12:"Cuchillería";}i:4;a:1:{s:31:"Cuchillos Militares y tácticos";s:9:"Cuchillos";}}s:10:"inventario";s:8:"999.0000";s:7:"galeria";a:1:{i:0;a:3:{s:3:"url";s:71:"http://foo.es/bar.png";s:5:"label";s:0:"";s:8:"position";s:1:"1";}}}

And when unserializing it, the following error is displayed:

raise ValueError('object in serialization dump but ' ValueError: object in serialization dump but object_hook not given.

I've googled the error, but I only end up in the source code. Do you have any idea?

Thanks in advance.

Answer 1

The documentation on the PyPI page of phpserialize contains some documentation, namely:

An object hook is a function that takes the name of the class and a dict with the instance data as arguments. The instance data keys are in PHP format which usually is not what you want. To convert it into Python identifiers you can use the convert_member_dict function. For more information about that, have a look at the next section. Here an example for a simple object hook:

>>> class User(object):
...     def __init__(self, username):
...         self.username = username
...
>>> def object_hook(name, d):
...     cls = {'WP_User': User}[name]
...     # The following was added by me -Antti
...     d = convert_member_dict(d)
...     return cls(**d)
...
>>> user = loads(data, object_hook=object_hook)
>>> user.username
'admin'

Thus for all classes not supported by phpserialize directly, you need to write a matching class in Python and return instances of them from the object_hook.