built-in sequences in python

Sungiven — Sat, 20 Jan 2024 11:40:00 +0000

so imma go thru 2 set of comparisons between sequences in python.

container vs flat sequences
mutable vs immutable sequences

container vs flat seqs

container seqs are the ones that can hold items of different types, incl nested containers. examples: list, tuple, collections.deque

flat seqs hold items of one simple type. examples: str, bytes, array.array.

a container seq holds refs to objs it contains which can be of any type, while a flat seq stores the value of its items in its own memory space, not distinct python objs.

mutable vs immutable seqs

examples for mutable: list, bytearray, array.array, collections.deque

examples for immutable: tuple, str, bytes

mutable sequences inherit all methods from immutable seqs, and additionally implement additional methods. the built-in concrete seq types don't subclass the Sequence and MutableSequence ABCs, but they're virtual subclasses registered with those ABCs. being virtual subclasses, tuple and list pass these tests:

>>> from collections import abc
>>> issubclass(tuple, abc.Sequence)
True
>>> issubclass(list, abc.MutableSequence)
True

the most fundamental seq types is the list which is a mutable container.

fast git to add,commit,push

Sungiven — Sat, 20 Jan 2024 09:11:00 +0000

add, commit, push simultaneously with this little bash script!
use it like this ./gush.sh 'msg'. dont forget to do a chmod +x ./gush.sh to make it executable tho.

DEV Community: Sungiven

built-in sequences in python

container vs flat seqs

mutable vs immutable seqs

fast git to add,commit,push