Operating on Sequence Types
We can iterate over the items in a sequence s in a variety of useful ways:
Table : Various ways to iterate over sequences
| Python Expression | Comment |
|---|---|
| for item in s | iterate over the items of s |
| for item in sorted(s) | iterate over the items of s in order |
| for item in set(s) | iterate over unique elements of s |
| for item in reversed(s) | iterate over elements of s in reverse |
| for item in set(s).difference(t) | iterate over elements of s not in t |
| for item in random.shuffle(s) | iterate over elements of s in random order |
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