Blender Python sort UV maps

sort_mesh_uv.py

from bpy.types import Mesh

def sort_uv_layers(mesh: Mesh):
    # UV layers use non-pythonic reference semantics, safest to always reference by their indices
    assert len(mesh.uv_layers) <= 7, "There must be fewer than 8 UV maps to sort (one less than the Blender maximum of 8)"
    initial_layers = [[i, layer.name] for i, layer in enumerate(mesh.uv_layers)]
    initial_layers.sort(key=itemgetter(1))
    for i, layer_name in tuple(initial_layers):
        assert mesh.uv_layers[i].name == layer_name, mesh.uv_layers[i].name + " " + layer_name        
        mesh.uv_layers.active = mesh.uv_layers[i]
        new_layer = mesh.uv_layers.new(name=f"new_{mesh.uv_layers[i].name}")
        assert new_layer == mesh.uv_layers[-1]
        mesh.uv_layers.active = mesh.uv_layers[0]
        mesh.uv_layers.remove(mesh.uv_layers[i])
        for pair in initial_layers:
            if pair[0] > i:
                pair[0] -= 1
    for layer in mesh.uv_layers:
        layer.name = layer.name.replace("new_", "")
    mesh.uv_layers.active = mesh.uv_layers[0]

Sort the UV Layers / Maps on a Mesh based on their names. Useful for exporters which rely on the order of UVMaps