ListAttribute supports any Iterable types

[pedrotcaraujo]

Hi all,

By creating a new PynamoDB model in my project I noticed that the ListAttribute supports any iterable types, such as string or dict, for instance. Is that behavior expected?

if I assign a string to a ListAttribute, for example "asdf", it stores in dynamodb something like this ['a','s','d','f']

In this case, I'm fairly expecting to Pynamodb to accept only List types.

Thanks!

[ikonst]

While there could be a case for explicitly rejecting strings, I think rejecting tuples might break legitimate existing code.