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molcrafts-molrs

PyPI

Python bindings for the molrs molecular modeling toolkit.

This package is the first public preview of the Python API. Install with pip install molcrafts-molrs and import it as molrs.

Full documentation lives at https://molcrafts.github.io/molrs/. The Python API reference is rendered at https://molcrafts.github.io/molrs/reference/python/.

Install

pip install molcrafts-molrs

Quick start

import numpy as np
import molrs

# Parse SMILES and generate 3D coordinates
ir = molrs.parse_smiles("CCO")
mol = ir.to_atomistic()
result = molrs.generate_3d(mol, molrs.EmbedOptions(speed="fast", seed=42))
frame = result.mol.to_frame()

# Build a system from scratch
frame = molrs.Frame()
atoms = molrs.Block()
atoms.insert("x", np.array([0.0, 0.96, -0.24], dtype=np.float64))
atoms.insert("y", np.array([0.0, 0.0, 0.93], dtype=np.float64))
atoms.insert("z", np.zeros(3, dtype=np.float64))
atoms.insert("element", ["O", "H", "H"])
frame["atoms"] = atoms

Support

  • Python 3.9+
  • pip install molcrafts-molrs
  • import molrs
  • Offline API help is available with help(molrs.Frame) and related symbols

API

Data model

  • Frame — dict-like container of named Blocks + optional Box
  • Block — column store backed by numpy arrays
  • Box — simulation box with periodic boundaries

I/O

  • molrs.read_pdb(path) / molrs.read_xyz(path) → Frame
  • molrs.parse_smiles(smiles) → SmilesIR → .to_frame()

Neighbor search and analysis

nq = molrs.NeighborQuery(box, positions, cutoff=5.0)
nlist = nq.query_self()

from molrs.compute.density import RDF
rdf = RDF(100, 5.0)
result = rdf.compute(frame, nlist)

Force field

typifier = molrs.MMFFTypifier()
potentials = typifier.build(atomistic)

Development

maturin build
pip install target/wheels/*.whl
pytest -q
Component Version
Python 3.9+
PyO3 Managed by molrs-python/Cargo.toml
maturin 1.x

License

BSD-3-Clause

Metadata

Release files for molcrafts-molrs-nightly 0.1.0.dev202606111253

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molcrafts_molrs_nightly-0.1.0.dev202606111253-cp312-abi3-win_amd64.whl CPython 3.12 abi3 Windows x86-64 Details
molcrafts_molrs_nightly-0.1.0.dev202606111253-cp312-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl CPython 3.12 abi3 Linux glibc 2.17+ x86-64 Details
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