Better to post API questions to zotero-dev. We try to keep technical discussions there.
But Zotero doesn't have a Citation Key field yet (other than one in the new Preprint item type) — that's something from the Better BibTeX plugin. I assume those keys are stored somewhere (Extra?), in which case you can extract it from there as you would for any other field. We can't help with pyzotero though.
But Zotero doesn't have a Citation Key field yet (other than one in the new Preprint item type) — that's something from the Better BibTeX plugin. I assume those keys are stored somewhere (Extra?), in which case you can extract it from there as you would for any other field. We can't help with pyzotero though.