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5 docs tagged with "Collections"

Lists, tuples, dictionaries, and sets.

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Data Types

Python's four scalar and four collection types — int, float, str, bool, list, tuple, dict, set.

Dictionaries and Sets

Key/value lookup with dict, uniqueness and set algebra with set, and why keys must be immutable.

Lists

The mutable sequence — methods that change it in place, sort vs sorted, the reference trap, and comprehensions.

Strings and Slicing

Indexing, the three-part slice, immutability, and the string methods worth knowing.

Tuples

The immutable sequence — the trailing-comma rule, shallow immutability, unpacking, and when a tuple beats a list.