Add SEO meta description via Python API.

Hello, I’m trying to do this via the Python API… It succeeds, but it does not look like the SEO description was actually added when I look at the Shopify Admin. Any ideas?

mf = {
    "namespace": "global",
    "key": "description_tag",
    "value": "The description...",
    "type": "single_line_text_field",
}
sp = shopify.Product.find(w.shopifyid)
mf = shopify.Metafield(mf)
sp.add_metafield(mf)
sp.save()

So I finally worked this out, specifying the owner information in the metafield fixed it!

mf = {
    "namespace": "global",
    "key": "description_tag",
    "value": "blah",
    "value_type": "string",
    "owner_resource" : "product",
    "owner_id": w.shopifyid
}