#python
An iterable is an object that can return an iterator, which can be used to iterate over its elements. In Python, strings, lists, tuples, and dictionaries are all iterable objects.
An iterator is an object that keeps track of its current position in an iterable and can return the next element in the sequence each time it is called. An iterator can be used to iterate over an iterable in a sequential manner.
Iteration is the process of repeatedly calling the next() method of an iterator until it raises a StopIteration exception. When an iterator is created from an iterable, it starts at the beginning of the sequence and continues until it reaches the end.
To iterate over an iterable in Python, you can use a for loop. The for loop automatically creates an iterator from the iterable and calls the next() method until it reaches the end of the sequence.
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