Seittik

Seittik is a functional programming library for Python that aims to supplant Python's existing functional interfaces, offering a more comprehensive and expressive alternative.

Put another way: If you ever wished Python's map, filter, and itertools had a fluent API, or that lambda wasn't quite so verbose, this is for you.

It provides:

• A fluent and extensive API for processing iterable data: pipes.
• A compact and expressive alternative to lambda: shears.
• A kitchen-sink, all-under-one-roof approach.
• A REPL-first philosophy.

Examples

Something basic:

from seittik import P, X, Y

# Take numbers 1 through 4, triple them, keep evens, and sum them
P([1, 2, 3, 4]).map(X * 3).filter(X % 2 == 0).fold(X + Y)
# 18

# Or, equivalently:
P.range(1, 4).map(X * 3).filter(X % 2 == 0).sum()
# 18

And something more amusing:

import random; random.seed(0) # Get a deterministic result below
from seittik import P, X, Y

# Return 5 arrays of traditional RPG stats (rolling three six-sided dice
# for each of "Str", "Dex", "Con", "Int", "Wis", and "Cha") that have at
# least one score of 14 or better, sorted by the sum of the array, in
# descending order, providing dict labels.
(P.roll('3d6')
    .chunk(6)
    .filter(P.any(X >= 14))
    .dictmap({'sum': sum, 'scores': X})
    .take(5)
    .sort(key=X['sum'], reverse=True)
    .list())
# [{'sum': 71, 'scores': (13, 13, 9, 8, 16, 12)},
#  {'sum': 66, 'scores': (14, 10, 8, 13, 9, 12)},
#  {'sum': 66, 'scores': (8, 14, 9, 12, 13, 10)},
#  {'sum': 57, 'scores': (9, 15, 8, 6, 10, 9)},
#  {'sum': 54, 'scores': (12, 7, 5, 14, 6, 10)}]

(These undoubtedly look much nicer on the documentation site.)

Installation

Using Poetry with an existing project:

poetry add seittik

If you're using pip directly (not recommended):

pip install seittik

Documentation

See seittik.com

License

MIT. See LICENSE.

Changelog

See CHANGELOG.md.

Like it? Support kitties!

If you're able, donations to 4 Paws Sake PA would be enormously appreciated. They're an absolutely wonderful animal rescue.

("Seittik" is "kitties" spelled backwards. I'm a cat person, and I wanted to avoid name collisions.)