I can't read a specific DXF file with EZDXF cause of "ValueError: Invalid handle 0."

[doo...@gmail.com]

Hi,Im doomori.

I have a touble with ezdxf.readfile.

• python 3.6
• ezdxf 0.13

python code:

  import ezdxf

  doc = ezdxf.readfile('./test.dxf')

i have error code:

ValueError: Invalid handle 0.

other cad app can import test.dxf like below drawing.

it is very simple drawing.

it is full error message::

File "C:\Users\xxxxxxx\Documents\python\test\test1.py", line 2, in <module>

    doc = ezdxf.readfile('./test.dxf')

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\filemanagement.py", line 136, in readfile

    doc = read(fp, legacy_mode=legacy_mode, filter_stack=filter_stack)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\filemanagement.py", line 85, in read

    return Drawing.read(stream, legacy_mode=legacy_mode, filter_stack=filter_stack)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\drawing.py", line 234, in read

    return cls.load(tag_loader, legacy_mode=legacy_mode, filter_stack=filter_stack)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\drawing.py", line 279, in load

    doc._load(tag_loader)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\drawing.py", line 326, in _load

    fill_database(sections, self.dxffactory)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\lldxf\loader.py", line 135, in fill_database

    for index, entity in enumerate(load_dxf_entities(section, factory)):

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\lldxf\loader.py", line 126, in load_dxf_entities

    yield factory.load(entity)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\entities\factory.py", line 69, in load

    self.doc.entitydb.add(entity)

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\entitydb.py", line 101, in add

    self[handle] = entity

  File "C:\Users\xxxxxxx\AppData\Local\Programs\Python\Python36\lib\site-packages\ezdxf\entitydb.py", line 44, in __setitem__

    raise ValueError(f'Invalid handle {handle}.')

ValueError: Invalid handle 0.

please help me ,,,,.

thank you

[Manfred Moitzi]

---------- Forwarded message ---------
Von: Manfred Moitzi <manfred...@gmail.com>
Date: Fr., 18. Dez. 2020 um 07:53 Uhr
Subject: Re: [python-ezdxf] I can't read a specific DXF file with EZDXF cause of "ValueError: Invalid handle 0."
To: doo...@gmail.com <doo...@gmail.com>

Hi!

This is a very old DXF R10 file (AC1006), I will try to add support for this old DXF version - thx for the test file.

Best regards,

Manfred

PS: Look at the new GitHub discussions forum. I like it more than the google-groups forum.

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[doo...@gmail.com]

Thank you for your reply. I’ll leave the rest up to you.

Thank you for your cooperation.  

2020年12月18日金曜日 15:54:22 UTC+9 manfred...@gmail.com: