SDK version 1.2.1 released

We've released version 1.2.1 of the SDK for the Python runtime. Here are some highlights from the release notes:

• Stable, unique IDs for
  User objects. The Users service now provides a unique user_id for each
  user that stays the same even if a user changes her email address.


• The Images API now supports compositing images and calculating a color histogram for an image.


• New allowed mail attachment types: ics, vcf


• Urlfetch requests can now set the User-Agent header.


• An App Engine-specific version of the Python PyCrypto cryptography library is now available. Learn more at http://code.google.com/appengine/docs/python/tools/libraries.html


• The bulk loader configuration format has changed to allow non-CSV input.
  This change is not backwards compatible, so if you've written code for the bulk loader, it will need to be updated.


• An early release of the bulk downloader is also now
  available in bulkloader.py. Learn more about these changes at: http://code.google.com/appengine/docs/python/tools/uploadingdata.html

For a full list see the SdkReleaseNotes wiki page.

Downloads for Windows, Mac, and Linux are available on the Downloads page. This SDK update was for the Python runtime, so please post your feedback in the Python runtime discussion group.

Posted by Jeff Scudder, App Engine Team