Trouble debugging this script (loop through non-manifold verts on one mesh and find index of closest edge on a different mesh) - any tips

Question

The eventual purpose of this script will be to try to stitch two halves of two different, sliced-open objects, together. This is to be done by individually moving each of the verts on the open non-manifold sliced edge of one of the objects, to the nearest point on the non-manifold edge on the other object.

For now, I am just trying to find & print the index of the closest edge on object B, for each non-manifold vertex on object A. Later I'll add more code for the moving of the verts on object A.

I'm a bit stuck as I'm new to python in Blender.

I'm getting the following error for line 44: AttributeError: 'BMVert' object has no attribute 'location'

Code:

    import bpy, bmesh
from mathutils import Vector
from mathutils.bvhtree import BVHTree

o = bpy.context.scene.objects
# Get the object and its mesh
obj = o["Cube"]
obj1 = o["Cube.001"]

mesh = obj.data
mesh1 = obj1.data

# Set up the selection of non-manifold verts on obj1
# Select object 1
obj1.select_set(True)

bpy.ops.object.editmode_toggle()

#me1 = obj1.data

# Create bmesh from edit mesh data (obj1)
bm1 = bmesh.from_edit_mesh(mesh1)

# Select non-manifold vertices in obj1
bpy.ops.mesh.select_all(action='DESELECT')
bpy.ops.mesh.select_non_manifold()


# Loop through the selection of non-manifold vertices on obj1
for v in bm1.verts:
    
    if v.select:
        
        # For each non-manifold vertex on obj1, find the closest edge on the other object ('obj')
        # Get vertices locations
        vertices = [v.co for v in mesh.vertices]
        # Construct polygons from edges
        polygons = [(e.vertices[0], e.vertices[1], e.vertices[0]) for e in mesh.edges]

        # Create a BVH Tree from it
        tree = BVHTree.FromPolygons( vertices, polygons, all_triangles = True )

        # Search for a location
        location = v.location

        # Query the tree
        found_location, normal, index, distance = tree.find_nearest( location )

        print( index )

Would be grateful for any help. Apologies if I've done anything extremely stupid here, am feeling my way bit by bit.

Answer 1

Here is the corrected code for line 44:

location = v.co

This is because BMesh/BMVert does not use the location attribute. It uses co, which stands for coordinates.