Python iterable and list, dictionary differences and connections

1 Why are the parameters of some functions specified to Iterable object, but can also pass in list as parameter?

Because list, dictionary are all iterable object.

adding ITER () to the Iterable object will return a iterator.

2 iterable The difference between object and iterator

Iterator can use next () to traverse the access.

Iterable can be traversed with a for.

The for traversal is done by first iterable the iterator object and then using next.

For can traverse the Iterable object directly, or you can traverse the iterator object directly.

Python iterable and list, dictionary differences and connections