Large Scale Structure Python Packages

camb

Code for Anisotropies in the Microwave Background

meshsearch

Uniform cubic mesh for fast neighbour queries in 3D, in C++ with Python bindings

corrfunc

⚡️⚡️⚡️Blazing fast correlation functions on the CPU.

otswap

Discrete optimal transport reconstruction of cosmological displacement fields and redshift-space distortion correction, for simulations and surveys. C++17 and Python

abacusutils

Python code to interface with halo catalogs and other Abacus N-body data products

classylss

a lightweight Python binding of the CLASS CMB Boltzmann code

isitgr

Code for Anisotropies in the Microwave Background

nbodykit

Analysis kit for large-scale structure datasets, the massively parallel way

measureia

Measurement code for intrinsic alignment correlation functions and clustering, in simulation boxes and lightcones.

mentat-lss

Code to emulate galaxy power spectrum multipoles predicted by EFT

pyvide

A pure-python re-implementation of the VIDE/ZOBOV void finder for simulation boxes, with minimal dependencies and reproducing VIDE bit for bit. It adds tracer weights, non-cubic boxes, per-axis periodicity, a density ceiling and a density-field mode.

pyhalomodel

A pure Python halo-model implementation for power spectra of any large-scale structure tracer combination.

heracles

Harmonic-space statistics on the sphere

pycosmommf

A python version of the CosmoMMF package originally written in Julia.

hmcode

A pure python implementation of HMcode

pyselfi

Simulator Expansion for Likelihood-Free Inference (SELFI): a python implementation

pyhermes-cosmo

High-performance multiresolution cosmic statistics in Python with reusable SFC fields and window operators for Counting, 2PCF, 3PCF multipoles, marked statistics, and physical-field analysis.

voiager

VOId dynAmics and Geometry ExploreR