Chih-Hsuan Yen 77bc97c8da
Fix ECR models for Python 3.8
Before this fix, using moto.ecr with Python 3.8 results in the
following error:

RuntimeError: dictionary keys changed during iteration
2019-10-27 16:58:03 +08:00
..
2017-05-22 15:50:22 -05:00
2019-10-27 16:58:03 +08:00
2019-01-25 14:47:23 -05:00