pythtb.io.w90#

IO utilities for Wannier90 output files.

Classes#

`HRBlock`	Dataclass representing real-space Hamiltonian block \(H(R)\) with degeneracy.
`W90Dataset`	Dataclass for Wannier90 data.

`load_w90_dataset`	Gather lattice, centre, and Hamiltonian data into a `W90Dataset`.
`parse_unit_cell_cart`	Parse `unit_cell_cart` into a Cartesian (3×3) lattice matrix.
`read_bands_w90`	Read Wannier90-interpolated band structure.
`read_centres`	Read `prefix_centres.xyz` and return Wannier centres in Cartesian coords.
`read_hr`	Read `prefix_hr.dat` returning `(num_wan, {R: HRBlock})`.
`read_kpoint_path`	Return the reduced-coordinate nodes declared in the `kpoint_path` block.
`read_win`	Return the raw lines from `prefix.win`.

`W90ConsistencyError`	Raised when Wannier90 data are internally inconsistent.
`W90ParseError`	Raised when a Wannier90 file is missing or cannot be parsed.