Unable to Add Text to the Edge Label

[jodar25]

Hi,

I am not able to add text to edge labels following the documentation:

Main categories

blade_grinders = NodeObject(tree=tree, value="Blade Grinders", tree_parent=grinders)
burr_grinders = NodeObject(tree=tree, value="Burr Grinders", tree_parent=grinders)
blunt_objects = NodeObject(tree=tree, value="Blunt Objects", tree_parent=grinders)

Other

elec_blade = NodeObject(
tree=tree, value="Electric Blade Grinder", tree_parent=blade_grinders
)
mnp = NodeObject(tree=tree, value="Mortar and Pestle", tree_parent=blunt_objects)

Conical Burrs

conical = NodeObject(tree=tree, value="Conical Burrs", tree_parent=burr_grinders)
elec_conical = NodeObject(tree=tree, value="Electric", tree_parent=conical)
manual_conical = NodeObject(tree=tree, value="Manual", tree_parent=conical)

HarioSkerton = NodeObject(tree=tree, value="Hario Skerton", tree_parent=manual_conical)
Comandante = NodeObject(tree=tree, value="Comandante", tree_parent=manual_conical)
JZpresso = NodeObject(tree=tree, value="ZJpresso JX-Pro", tree_parent=manual_conical)
weberHG2 = NodeObject(tree=tree, value="Weber HG-2", tree_parent=manual_conical)

BaratzaEnc = NodeObject(tree=tree, value="Baratza Encore", tree_parent=elec_conical)
Niche = NodeObject(tree=tree, value="Niche Zero", tree_parent=elec_conical)
WeberKey = NodeObject(tree=tree, value="Weber Key", tree_parent=elec_conical)

Flat Burrs

flat = NodeObject(tree=tree, value="Flat Burrs", tree_parent=burr_grinders)

DF64 = NodeObject(tree=tree, value="Turin DF64", tree_parent=flat)
FellowOde = NodeObject(tree=tree, value="Fellow Ode", tree_parent=flat)
LagomP64 = NodeObject(tree=tree, value="Lagom P64", tree_parent=flat)

edge1 = drawpyo.diagram.Edge(source=burr_grinders, target=flat, value="aaaa")
edge1.label = "-----aaaaa------"
edge1.label_position = -1

edge2 = Edge(source=conical, target=flat)
edge2.value = "-----bbbbb------"
edge2.label_position = 1

flat.add_in_edge(edge=edge1)
burr_grinders.add_out_edge(edge=edge2)

grp = tree.auto_layout()
tree.write()