New version of magnopy has been published, see
release notes for detailed description.
An important bugfix was implemented (see
issue #79). Sorting of eigenvalues introduced in the version 0.2.0 was leading to the incorrect recombination of the spin wave eigenenergies for some of the spin Hamiltonians. Now the sorting is physically correct and diagonalization gives correct eigenenergies.
We recommend to update from the versions 0.2.* or 0.3.* to the 0.4.2.
Best,
Developers of magnopy