copy dxfattribs
@@ -302,7 +302,7 @@ class LayerTable(Table):
.. versionadded:: 0.17
"""
- dxfattribs = dxfattribs or {}
+ dxfattribs = dict(dxfattribs or {})
if validator.is_valid_aci_color(color):
dxfattribs["color"] = color
else:
