boto/boto — pull request #536 by milancermak (2012-01-31 16:19:17+00:00)
Title: A slightly better error message in layer2.

Improved TypeError message to include the type of the object, not just its value. This bit me when I was passing a datetime object to store in DynamoDB. The error message read like:

```python
'Unsupported type "2012-01-31 17:17:04.163851"'
```

which looks like a legit string.