ExportSVG() is broken

[gordon-quad]

ezdxf: 0.16.5 python: 3.11 build123d: dev branch

from build123d import *

svg = ExportSVG()

results in:

Traceback (most recent call last):
  File "/home/gordon/mysrc/cadquery/export.py", line 3, in <module>
    svg = ExportSVG()
          ^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/build123d/exporters.py", line 944, in __init__
    self.add_layer(
  File "/usr/lib/python3.11/site-packages/build123d/exporters.py", line 991, in add_layer
    layer = ExportSVG._Layer(
            ^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/build123d/exporters.py", line 907, in __init__
    self.fill_color = convert_color(fill_color)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/build123d/exporters.py", line 902, in convert_color
    if isinstance(c, RGB):
       ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 1328, in __instancecheck__
    return self.__subclasscheck__(type(obj))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/typing.py", line 1331, in __subclasscheck__
    raise TypeError("Subscripted generics cannot be used with"
TypeError: Subscripted generics cannot be used with class and instance checks

[gumyr]

Try upgrading ezdxf - I think that will fix the problem.

[gordon-quad]

Yep, it works with 1.3.0. Did not check dependencies from pyproject.toml carefully, sorry.

[gumyr]

The better solution is to add a minimum to the pyproject.toml for ezdxf but I haven't done that yet. I think this is the first dependency that's had this type of problem.