i did some verts with a loop

if vid > 0: # Add edges

514 edges1.append(bm.edges.new((bm.verts[vid-1], bm.verts[vid])))

vid+=1

then i tried to extrude the edges made with he following

# Extrude and create geometry

edges_start_a = bm.edges[:]

ret = bmesh.ops.extrude_edge_only(

bm,

edges=edges_start_a)

geom_extrude_mid = ret[“geom”]

verts_extrude_b1 = [ele for ele in geom_extrude_mid

if isinstance(ele, bmesh.types.BMVert)]

del ret

but i get an error on the line for making edges before the extrude part

so was there any chanhes to the extrude command

or why is it giving an error like this

nd\addmeshcells1.py", line 514, in graphic2

ValueError: edges.new(): this edge exists

thanks