multileader mtext

[sunblog3]

Create dxf file is run without error.But the loading file run error

# doc = ezdxf.new(setup=True)
doc = ezdxf.readfile(r'test.dxf')

mleaderstyle = doc.mleader_styles.duplicate_entry("Standard", "EZDXF")
mleaderstyle.set_mtext_style("Standard")
msp = doc.modelspace()

ml_builder = msp.add_multileader_mtext("Standard")
ml_builder.set_content(
    "Line1\nLine2",
    style="OpenSans",
    alignment=mleader.TextAlignment.right,  # set MTEXT alignment!
)
ml_builder.add_leader_line(mleader.ConnectionSide.left, [Vec2(40, -15)])
ml_builder.build(insert=Vec2(15, 0))
doc.saveas("mleader_custom_style.dxf")

Traceback (most recent call last):
  File "E:\demo.py", line 13, in <module>
    ml_builder.set_content(
  File "D:\venv\Lib\site-packages\ezdxf\render\mleader.py", line 1266, in set_content
    self._set_mtext_style(style)
  File "D:\venv\Lib\site-packages\ezdxf\render\mleader.py", line 1269, in _set_mtext_style
    style = self._doc.styles.get(name)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\venv\Lib\site-packages\ezdxf\sections\table.py", line 145, in get
    raise const.DXFTableEntryError(name)
ezdxf.lldxf.const.DXFTableEntryError: OpenSans

[mozman]

The text style "OpenSans" does not exist in "test.dxf"

Setup the ezdxf text styles for a loaded DXF file:

from ezdxf.tools.standards import setup_styles

if not doc.styles.has_entry("OpenSans"):
    setup_styles(doc)