Fix import path of `Iterable` (#63)
Fix import path of `Iterable` (#63)

In python 3.10, `collections.abc.Iterable` is no longer available
as `collections.Iterable` and thus `dazel` no longer works without
this change.

The official deprecation warning is from python 3.3:

"Using or importing the ABCs from 'collections' instead of from
'collections.abc' is deprecated since Python 3.3, and in 3.10 it
will stop working."
nadirizr/dazel