$FINGERPRINTGUID and $VERSIONGUID changes at loading

[mozman]

Discussed in #728

^{Originally posted by chrmangold August 10, 2022}
Hi!

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
print(doc.header['$FINGERPRINTGUID'])
print(doc.header['$VERSIONGUID'])

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,

Chris

[mozman]

The indented behavior is:

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

That's fixed now.

[chrmangold]

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