Lazy Evaluation Python Packages

blosc2

A high-performance library for compressed ND arrays and columnar tables, with compute and indexing engines

lazify

Lazify all the things!

lazy-string

Python library for defining strings with delayed evaluation

bpf4

lazy evaluated curves for python

streamable

sync/async iterable streams for Python

injectable

Python Dependency Injection for Humans™

fungeom

A generic functional substrate implemented as an immutable, decidable resolver graph.

lz

Functional utilities

seqtools

A python library to manipulate and transform indexable data (lists, arrays, ...)

unpythonic

Supercharge your Python with parts of Lisp and Haskell. Py3.10-3.14.

zpyflow

Zero-allocation lazy query pipelines for Python, powered by Rust

lateimport

Lazy import utilities for deferred module loading and attribute access. Truly lazy, truly late.

fazy

Lazy f-strings for everyone

polars-io-tools

Custom parsing extensions for lazy polars

carriage

Enhanced collection classes for programming fluently

phantom-ai

Sandboxed data analysis with LLMs, powered by DuckDB

tributary

Streaming reactive and dataflow graphs in Python

kothon

Enhance Python with Kotlin's Sequence class and functional programming for efficient, expressive data pipelines.

dycode

Toolkit for Dynamic Python code manipulations

neurtu

A simple benchmarking tool

lazy-table

A python-tabulate wrapper for producing tables from generators

sanic-toolbox

A general utility toolbox for Sanic without monkey patching, for plugins and applications

dypy

A toolset for dynamic python code manipulations

baloo

Implementing the bare necessities of Pandas with the lazy evaluating and optimizing Weld framework.