The OCA prestashop connector has not yet been migrated in v8 and v9.
The only prestashop connector that seems to work is the Webkul connector (not free) https://store.webkul.com/PrestaShop-Extensions/Prestashop-Openerp-Connector.html 

Thanks for your reply!

I really believed it! But that don't display the module.

The update modules list action has ask me to install "unidecode", I have install it (So the script read prestashoperpconnect/__openerp__.py) and nothing.
I have test to get other depends (product, product_m2mcategories, connector_ecommerce, product_images, product_custom_attributes, mrp). The module product_custom_attributes don't exist for 8.0 version, only product-attribute.

Do you use the connector-prestashop ? In wich version ? Odoo version ?

Hello Gcooper,

Please Find __openerp__.py in that particular modules and change this one line

"installable": False --> "installable": True,

Thanks