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$FINGERPRINTGUID and $VERSIONGUID changes at loading #729

mozman opened this issue Aug 11, 2022 Discussed in #728 · 2 comments

$FINGERPRINTGUID and $VERSIONGUID changes at loading #729

mozman opened this issue Aug 11, 2022 Discussed in #728 · 2 comments


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mozman commented Aug 11, 2022

Discussed in #728

Originally posted by chrmangold August 10, 2022

I want to know if the following is an intended behaviour of ezdxf package.

# open a simple dxf file (eg. acad_table_simple.dxf)
doc = ezdxf.readfile(dxf_path)

# then print special header variables

valid uuids will be printed out.
But - one can find the values in the dxf file. The printed uuids are not identical to the ones in the dxf file

And - each time I restart this snippet I get different uuids printed out.

For me it seems like an unwanted situation, but I am not quite sure about that.

I need to be able to identify one drawing out of some attributes.
So what is the best way to achieve this goal?

Thanks for any suggestions,


mozman added a commit that referenced this issue Aug 11, 2022
$FINGERPRINTGUID is never changed after document creation.
$VERSIONGUID changes as every export.
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mozman commented Aug 11, 2022

The indented behavior is:

  • $FINGERPRINTGUID never changes after document creation
  • $VERSIONGUID changes at every export

That's fixed now.

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Thank you very much for this nearly immediate response and fix.

@mozman mozman closed this as completed Aug 12, 2022
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