Updating item returns "Invalid request, probably due to unsupported parameters"

[stakats]

Attempting to update an attachment with update_item() returns an Invalid Request. The only metadata I'm changing are the attachment's tags.

[urschrei]

I have no idea why this is failing – it's working fine for non-attachment items, and the JSON it's sending is valid. I'll ask on the mailing list.

[urschrei]

Adding a link to the mailing list discussion, as this is apparently an API limitation: https://groups.google.com/forum/?fromgroups#!topic/zotero-dev/cpTuzyp-keY

[urschrei]

This issue is still open on the Zotero side: zotero/dataserver#1

[tetris-11]

Quick note -- for those still encountering this problem:

myitem = zot.item('KCP87MZI')                                                                                                              

zot.update_item( myitem )          # This fails
zot.update_item( myitem['data'] )  # This updates fine