pytrr

pytrr is a Python package for reading .trr [1] files from GROMACS [2].

pytrr is intended as a lightweight, pure Python, library for reading .trr trajectories and it gives access to positions, velocities, etc. as numpy arrays.

Example

from pytrr import GroTrrReader

with GroTrrReader('traj.trr') as trrfile:
    for frame in trrfile:
        print(frame['step'])
        frame_data = trrfile.get_data()
        print(frame_data['x'][0])

Installation

pytrr can be installed via pip:

pip install pytrr

References

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